Class-4 Environment Science Chapter-7 Plants around us

 EVENTS CONVENT H.SCHOOL

03/02/2021             CLASS-4                   SLOT-2
Environment Science
Chapter-7 plants around us

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Hardwords:-

1.     Surrounding

2.    Observe

3.    Characteristics  

4.    Shoot system

5.    Root system  

6.    Seeds   

7.    Groups  

8.    Charity

9.    Secondary

10.  Breathing  

 

1.Answer the following questions:-

Que-1 What are the main parts of plant ?

Ans-1The following are the main parts of plant

     Root ,stem, leaves ,flower, fruits and seeds.

 Ques-2 What are the two types of roots?

Ans 2 The two types of roots are tap roots and fibrous roots

 Que-3 What are aerial roots?

Ans-3 banyan tree has roots growing from its branches such roots are called aerial roots.

 Que-4Gift example of each of the following

Ans-4   1.Roots that we eat -Potatoes ,Garlic

        2.Plants with fibrous roots- Wheat ,Rice

        3.Plants with tap roots –Carrot, Radish

 Que-5Which part of plant remain under the ground?
Ans-5 Root is that part of a plant which remain under the ground.

 2.State true or false:-

1.     Roots grow under the ground                 (True)

2.    Roots do not prevent washing away of soil during heavy rain (False)

3.   Fibrous root States over a large area          (True)

4.    All grasses have a taproot                       (True)

 3.Fill in the blanks

1.     There are 40% of the world and that is covered with tree and grass.

2.    Stem leaves flowers fruits and seeds are aerial parts of a plant.

3.    Aerial part is called appetite of a plant.

4.    Root of a plant remains underground.

5.    Roots are classified into tap root and fibrous root.

Draw a Picture of Plant and Labelled It

Class-9 History Chapter-3 Nazims and the Rise of Hitler

 EVENTS CONVENT H.SCHOOL

03/02/2021             Class-9                   SLOT-2
History
Chapter-3 Nazims and The Rise of Hitler
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Question-1Describe the problems faced by the Weimar Republic.

Solution:The problems faced by the Weimar Republic were as follows:

The Weimar constitution had Inherent drawbacks making the Weimar Republic fragile.

One was proportional representation which made it difficult for any party to get a majority leading to coalition governments.

Article 48, which gave the President the power to rule by decree, suspend civil rights and to impose an emergency.

People lost confidence in a democratic parliamentary system.

 
Question-2Discuss why Nazism became popular in Germany by 1930.

Solution:In 1919 Adolph Hitler took over the German Workers’ Party and called it the Nazi Party, giving birth to Nazism in Germany.

During the Great Economic Depression Nazism became very popular. The Nazi Propaganda which was very unique helped in making Nazism very popular. In his powerful speeches, Hitler promised to build a strong nation, restore the dignity of the Germans and provide employment for all. Numerous public meetings were held by the Nazi Party to instil unity among the people.

 The red banners, the Nazi salute, and the rounds of applause attracted the people and Nazism became very popular. The Meetings projected Hitler as a saviour of Germany. The German people who were shattered after the First World War believed him.

 

Question-3What are the peculiar features of Nazi thinking?

Solution:The peculiar features of Nazi thinking are as follows.

 Nazi ideology was the same as Hitler’s worldview. According to this there was no equality between people but only a racial hierarchy. In this view blond, blue-eyed Nordic German Aryans were at the top called ‘desirables’ while Jews (undesirables) were placed at the lowest rung. Hitler’s racism was influenced by thinkers like Charles Darwin and Herbert Spencer. The Nazi argument was simple: ‘The strongest race would survive, the weak ones would perish’.

Nazis wanted a society of pure and healthy Nordic Aryans. It meant that even those Germans who were seen as impure or abnormal had no right to live. Under the Euthanasia Programme, the Nazi condemned to death many Germans, who were mentally or physically unfit.

                       As soon as Hitler came to power he tried to eliminate the undesirables and the gypsy. The Nazis proceeded to realise their murderous racial ideals.

Question-4Explain why Nazi propaganda was effective in creating a hatred for Jews.

Solution:Films were made to create hatred for the Jews. The film, ‘The Eternal Jew’, showed the Jews with flowing beards and dressed in kaftans. The Jews were referred to as vermin, rats, and pests. Nazi propaganda compared the Jews to rodents.

 Orthodox Jews were stereotyped as killers of Christ and money lenders. Stereotypes about Jews were even popularised through maths classes. Children were taught to hate the Jews. The Nazi propaganda against the Jews was so effective that people felt anger and hatred surge inside them when they saw someone who looked like a Jew.

 

 Question-5Explain what role women had in Nazi society. Write a paragraph comparing and contrasting the role of women in the two periods.

Solution:In Nazi Germany, boys were told to be aggressive and steel-hearted, girls were told that they had to become good mothers and rear pure-blooded Aryan children. Girls had to protect the purity of German race. They had to look after their homes and Nazi values had to be taught to the children.

 Women who produced ‘desirable children’ were awarded. They got better treatment in hospitals, and got concessions in shops, on theatre tickets and railway fares. Honour crosses were awarded to women. A bronze cross was awarded to women for four children, silver cross for six children and gold for eight or more children.

 

Question-6In what ways did the Nazi state seek to establish total control over its people?

Solution:The Nazi state tried to establish total control over its people. Special forces were created to control the society, in the way Nazis wanted. Apart from SA or the Storm Troopers, and regular police, who wore a green uniform, these included the Gestapo (secret state police) and SS (the protection squads), criminal police, and the Security Service (SD). They were given extra-constitutional powers, that gave the Nazi state its reputation as the most dreaded criminal state. People were tortured in Gestapo chambers and sent to concentration camps. People were arrested without any legal procedures.

Class-9 Geography Chapter-4 Climate

 EVENTS CONVENT HIGH SCHOOL

03/02/2021             Class-9                   SLOT-2
Geography
Chapter-4 climate

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1.Answer the following Questions

Question-1What are the controls affecting the climate of India?

Solution:There are six major controls of the climate of any place. They are:

 1.     Latitude

2.    Altitude

3.    Pressure and wind system

4.    Distance from the sea (continentality)

5.    Ocean currents

6.    Relief features

Question-2Why does India have a monsoon type of climate?

Solution:The monsoon type of climate is characterised by a distinct seasonal pattern. The weather conditions greatly change from one season to the other. These changes are particularly noticeable in the interior parts of the country. The coastal areas do not experience much variation in temperature though there is variation in rainfall patterns. Four main seasons can be identified in India – the cold-weather season, the hot weather season, the advancing monsoon, and the retreating monsoon with some regional variations.

 Question-3Which winds account for rainfall along the Malabar Coast?

Solution:Surface winds account for rainfall along the Malabar coast.

 Question-4Define monsoons. What do you understand by “breaks” in monsoon?

Solution:The seasonal reversal in wind direction during a yeat is called the monsoon. Monsoon tends to have ‘breaks’ in rainfall; which means that there are wet and dry spells in between The monsoon rains take place only for a few days at a time and then come to the rainless intervals.

 Question-5Why is the monsoon considered a unifying bond?

Solution:Despite great moderating influences on the climate of India, there are great variations in the temperature conditions. Nevertheless, the unifying influence of the monsoon on the Indian subcontinent is quite perceptible. The seasonal alteration of the wind systems and the associated weather conditions provide a rhythmic cycle of seasons.

 Question-6Why does the rainfall decrease from the east to the west in Northern India?

Solution:The western coast and northeastern India receive over about 400 cm of rainfall annually. However, it is less than 60 cm in western Rajasthan and adjoining parts of Gujarat, Haryana, and Punjab. Rainfall is equally low in the interior of the Deccan plateau, and east of the Sahyadris. The third area of low precipitation is around Leh in Jammu and Kashmir. The rest of the country receives moderate rainfall.

Question-7Give reasons as to why.

(i) The bulk of rainfall in India is concentrated over a few months.

(ii) The Tamil Nadu coast receives winter rainfall.

Solution:(i) The bulk of rainfall in India is concentrated over a few months

The inflow of the south-west monsoon into India brings about a total change in the weather. Early in the season, the windward side of the Western Ghats receives very heavy rainfall, more than 250 cm. The Deccan Plateau and parts of Madhya Pradesh also receive some amount of rain in spite of lying in the rain shadow area. The maximum rainfall of this season is received in the north-eastern part of the country. Mawsynram in the southern ranges of the Khasi Hills receives the highest average rainfall in the world. Rainfall in the Ganga valley decreases from the east to the west. Rajasthan and parts of Gujarat get scanty rainfall.

  (ii) The Tamil Nadu coast receives winter rainfall

A characteristic feature of the cold weather season over the northern plains is the inflow of cyclonic disturbances from the west and the northwest. These low-pressure systems, originate over the Mediterranean Sea and western Asia and move into India, along with the westerly flow. They cause the much-needed winter rains over the plains and snowfall in the mountains. Although the total amount of winter rainfall locally known as ‘mahawat’ is small, they are of immense importance for the cultivation of ‘rabi’ crops. The peninsular region does not have a well-defined cold season. There is hardly any noticeable seasonal change in temperature patterns during winters due to the moderating influence of the sea.

  Question-8Describe the regional variations in the climatic conditions of India with the help of suitable examples.

Solution:Despite an overall unity in the general pattern, there are perceptible regional variations in climatic conditions within the country. The two important elements, which cause these variations, are – temperature and precipitation.

For example, in summer, the mercury occasionally touches 50°C in some parts of the Rajasthan desert, whereas it may be around 20°C in Pahalgam in Jammu and Kashmir. On a winter night, the temperature at Drass in Jammu and Kashmir may be as low as minus 45°C. Tiruvananthapuram, on the other hand, may have a temperature of 20°C.

Question-9 Discuss the mechanism of monsoons.

Solution:To understand the mechanism of the monsoons, the following facts are important.

The differential heating and cooling of land and water create a low pressure on the landmass of India while the seas around experience comparatively high pressure.

The shift of the position of Inter-Tropical Convergence Zone (ITCZ) in summer, over the Ganga plain (this is the equatorial trough normally positioned about 5°N of the equator – also known as the monsoon trough during the monsoon season).

The presence of the high-pressure area, east of Madagascar, approximately 20°S over the Indian Ocean. The intensity and position of this high-pressure area affect the Indian Monsoon.

 

Class-2 EVS Chapter-5 Animal Kingdom

 EVENTS CONVENT HIGH SCHOOL

01/02/2021             CLASS-2                   SLOT-2

E.V.S
Chapter-5 animal kingdom

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B.Answer the following questions:-

Que-1 What are domestic animals?
Ans-1 Animals which are useful for us are called domestic animals.

Que-2 What are extinct animals?  

Ans-2 Extinct animals are those which have gone dead

Que-3 Name any three important features of birds.
Ans-3 The wings help them to fly. They lay eggs and live in nests.

Que-4 Which animals are known as amphibians? Give some examples.
Ans-4 Animals which live in both on land and in water is called amphibians. For Example: Crocodile, Frog, Turtle.

Class-8 Social Science Chapter-27 Our life and Environment

 EVENTS CONVENT HIGH SCHOOL

01/02/2021             CLASS-8                   SLOT-2

SOCIAL-SCIENCE
Chapter-27 OUR LIFE AND ENVIRONMENT

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1.   Choose the correct alternative from the following:

Question 1.Is not a biodegradable waste:

(a) vegetables

(b) fruits

(c) paper

(d) polythene bags

Answer:

(d) polythene bags

 

1.   Short Answer Type Questions

Question 1.What are industrial waste? Give examples.

Answer: Almost every industry generates different types of wastes, many of which are hazardous to all types of life. The wastes can be solid, liquid or gaseous. These wastes can cause destruction to the environment. The waste material contains ignitable, corrosive, reactive and topic elements. Examples, as, dust, sulphuric acid, hydrochloric acid, SO2, CO2, CO2 gases and plastic waste etc.

 

Question 2.What are the processes of manufacturing of goods?

Answer:Manufacturing of goods involve three processes.

1. Assembly:It is the combinations of parts to make the final product, for example, a bicycle is assembled by joining various parts.

2. Alteration:It is the modifying of the raw material into a new material or final product for example sawing of trees into lumbar.

 3. Extraction:In this process one or more components from the raw material for example petrol is extracted from the crude oil.

 There are many proofs of early production like bricks used in the buildings earthen pots to store grains etc. All there were produced with hands. As civilization grew the method of production improved because of innovation for example fibres take from different sources are processed to forms cloth.

 

Question 3.Name the major components of industry?

Answer:Most of the manufacturing industries need four imparts capital, raw material, technology and labour.

1. Capital:Every industry needs two types of capital Finance capital and physical capital. The physical capital is building, machinary etc and finance capital is money.

2. Raw Material:Most of the industries rely on raw materials provided by natural resources. These natural resources may be renewable on non renewable.

3. Technology:The technology advancement have hed to tremendous industrial growth innovations in the field of technology can transform the culture of the society.

4. Labour:It refers to the workforce. Labour unions are formed who negotiate their wages and work with the owners.

 

Long Answer Type Questions

Question 1.How does agriculture and cattle affect the environment?

Answer:In modern agriculture use of fertilizers is increasing day by day in order to enhance the production. Fertilizer are beneficial for increasing the production of foodgrains, it has an advance effect on environment 60% of fertilizers are used by plants, remaining fertilizer gets soluble in rain water and reaches lakes, revised and ponds by which the surface good ground water.

 

This gets polluted, various insecticides and pesticides which protect the crop from insects and diseases pollute the environment. Cattle are reared in large number to get animal products. Increasing number of cattle has adverse effect. Artificial reproduction of animals through cloning produce economically lucrative breeds, it may lead to diminishing bio-diversity.

 

Question 2.Explain the methods of solid waste disposal?

Answer:The various methods of solid waste disposal are:

 1. Recycling:It is very old method in which the waste materials are made reusable. All the metal products can be melted to make new products. Plastic, glass and paper is roofs recyclable.

 2. Landfill:It is the common method of disposing waste on land. It is also the cheapest means because transport cost is the only major expenditure. In a modem landfill the solid waste is spread in this layers. Each layer is solidified by bulldozer before the next layer is deposited on them trees are planted there.

3. Composting: It is a process of decomposing solid waste to make fertilizers. Biodegradable waste is decomposed by microorganisms and it is used as a manner.

4. Incinerators: In the incinerator the waste is burned so that it reduces weight and volume around 90%.

 Question 3.What do yo understand by environment friendly technology? Explain.

Answer:Modern technology can makes industries safe and cost effective. Modern technology is designed to recycle the various component of manufacturing system.

For example:The scrap steel of automobile industry can be useful to mixed with other metals produce a new metal.

The smoke scrubbers remove all the dangerous gases and particulate matter from the discharge of industrial plants.

Question 4.Describe the natural and regional environmental issues?

Answer:National environmental issues. The govt, of India has created agencies to check the pollution and has passed Environment Protection Act, Factories Amusement Act, Central Motor Vehicle Trucks etc. Govt, agencies as well as NGO’s work to check the pollution govt, of India provided enough money for functioning these agencies and departments.

Pollution Central Board at national level as well as state level has been established. These boards has been authorised to survey the area and fix the responsibility. The guilty is persisted in the court.

Regional environmental issues:At this level a variety of steps have been taken by the govt. NGO’s for the convservation of environment. At local level the municipality or municipal corporations plays a direct role in the water disposal. The sewage of the city is drained to distant parts from the city.