11 components of the earth

 #mcq

1. D

2. A

3. B

4. C

5. D

6. B

7. A

8. D

9. C

10. A

11. B

12. D

13. B

14. A

15. B

16. D

2. Fill in the blanks.

1. Environment 

2. Environment 

3. Lithosphere 

4. Hydrosphere 

5. Ultra- violate

6. Atmosphere 

7. Cultural 

8. Landmass

9. 71

10. Tide 

11. Tide-Ebb

12. Gravitational force 

13. Spring 

14. Warm 

15. Cold 

16. Noise Pollution 

17. Noise Pollution 

3. T&F

1. ✔️

2. ✔️

3. ❌

4. ✔️

5. ✔️

6. ✔️

7. ✔️

8. ❌

9. ✔️

10. ✔️

11. ❌

12. ✔️

Match the Pair 

1. A-5

2. A-3

3. A-1

4. A-2

5. Answer the following questions in one or two sentences 

(1) Write about the components of the environment. 

The four main components of the environment are: (1) Lithosphere, (2) Hydrosphere (3) Atmosphere and (4) Biosphere.

(2) What is meant by 'Lithosphere'?

 The solid crust on the surface of the earth is called 'Lithosphere'.

( 3) Of what is Lithosphere composed? It is composed of minerals rocks and Soil.

(4) How is the lithosphere useful? 

It provides land to humans for residents, land for agriculture and vegetation, plains for grasslands for grazing animals and minerals for industries. Thus, the lithosphere is useful.

( 5) What is meant by Hydrosphere? 

When a large low lying on the surface of the earth is filled in by water it is called Hydrosphere. The Sphere of water on the earth is known 'Hydrosphere'.

(6) Which are the main sources of fresh water?

 Main sources of fresh water are snow-Clad mountain peaks, ground water, fresh water lakes, rivers, Streams.

( 7) What is meant by Atmosphere? 

The gaseous Sphere which surrounds the earth is called "Atmosphere.

( 8) What is meant by 'Biosphere'?

Biosphere is that part atmosphere and Hydrosphere where life is pervasive.

( 9) What is included in the biosphere? Human beings, Vegetation(flora), animals (fauna) and micro-organisms are included in the biosphere.

(10) What is the work of the ozone gas of the atmosphere? 

By absorbing the intense ultra-violet sunrays of the atmosphere, the ozone gas protects life on the earth from its harmful effects.

(11) How many main types of environment are there? Which are they? 

There are main two types of environment: (1) Natural environment and (2) Man-made environment.

(12) Which are the oceans on the earth? 

There are five oceans on the earth: (1) Pacific (2) Atlantic, (3) Indian, (4) Arctic (5) Southern Ocean.

(13) What are called the tides and ebbs? 

The Sea water rises and falls twice during a day when the Sea water rises it is Called 'Tide' and when it falls is called 'Ebb’.

(14) What is the time interval between two tides?

The period between two tides is about 12 hours and 25 minutes.

(15) When do the spring (high) and neap (low) tides occur? 

The Spring (high) tide occurs on new moon day and full moon (Poonam) moon for days and the neap (low) tide occurs on the middle days of Sud and Vad. 

(16) What is meant by an ocean current? 

In some areas of the Ocean, a large water mass flows like a river in a specific direction, which is called an Ocean current.

(17) Where do the warm currents originate from and towards where do they flow? 

The main causes of currents are solar energy; wind, Salinity of Sea-water and rotation of the earth. Mostly hot currents move from the equator to the poles.

(18) Where do the cold currents generally originate from and towards where do they flow? 

Cold Currents move from the poles to the equator. The main causes of current Solar energy. (old Currents originate are (from) near the poles.

(19) What is meant by 'Pollution?

Human beings use their intellect to use various components of the environment to satisfy their needs. Gandhiji Said that pollution is the act of polluting the natural environment through human activities.

(20) What are the pollutants ? 

The components polluting the environment are called pollutants.

(21) What is meant by land pollution?

The changes in the quality of Land or Soil or in its nutritive elements is called land Pollution.

(22) What is called water pollution? 

When water becomes unsuitable for its intended use and external impurities are mixed with it, it is called water pollution.

(23) What is called air pollution?

Emission of gas or flames from industries, factories, thermal power plants etc into the atmosphere causes air pollution.

(24) Which pollution Irritability in human nature?

Irritability in the nature of human life is the effect of noise pollution.

6. Answer the following questions briefly:

(1) What is meant by environment?

The environment is made up of two words: "Pari" and "Avaran". Pari means all around "Avaran' means cover. Thus, Paryavaran ie. environment means Cover. Thus, Paryavaran i. e, environment means the cover of natural components surrounding earth from all sides. 

(2) Which are the types of natural environments? What is included in them?

There are two types of natural environment: (1) Biotic and Abiotic . The natural environment includes biological (biotic) components like fiora, fauna and human beings. Inorganic (abiotic) components like land, water etc.

(3) Which are major air pollutants? Emission of gas on fumes from industries, factories, thermal power plants etc into the atmosphere causes air pollution. Airborne particles such as Coal particles used as fuel, Carbonate Compounds obtained From factory fumes result in air pollution. The fumes of vehicles emit air pollutants like co2

(4) Mention three effects of noise pollution. 

The main three effects of noise pollution are as: (1) Noise Pollution Causes deafness in a person adverse effect on mental healths, irritability in nature, reduces the ability to work. (2) Excessive noise kills many insects and micro organisms. (3) Sometimes noise pollution causes high BP of the human body.

(5) Mention any two activities polluting the environment.

The two activities are as: (1) Natural disasters Such as Volcanic eruptions, earthquakes, river floods, etc. also pollute the environment (2) The Scrap of the Satellites Launched into Space, hollow bodies of the Space Crafts, useless pieces of metals, the waste abandoned by the astronauts in Space, etc Cause the Pollution in space. (3) various chemicals sprayed to bring artificial rain etc.

7. Answer the following questions:

(1) Mention any five measures to prevent land (soil) pollution. 

(1) Instead of pesticides and chemical fertilizers, organic and indigenous fertilizer, green manure should be used. (2) pesticides and excessive use of Chemical fertilizers and insecticides in agriculture also pollutes the land. (3) when the Solid waste and the effluents from the industries are discharged on the ground creates hand pollution.(4) Land becomes polluted due to the mining and construction activities. (5) The Polythene bags, plastic bottles thrown on the ground becomes very risky for the micro organisms which make the land very fertile. Thus, land pollution is caused in many ways.

(2) Mention any four measures to prevent water pollution. 

The measures to prevent water pollution are as follows:

1) The water from the gutters of domestic uses should be disposed of far into the river or the sea after the impurities within them are purified in the Sewage water plants.

(2) The government should make strict controls for the disposal of polluted water. (3) The polluted water used in the industries should be purified first and then only it should be disposed off (4) New technology should be invented to reduce or to prevent the water pollution and necessary treatment should be taken.

(3) State any four measures to prevent air pollution. 

The measures to prevent air pollution are as follows:

(1) To prevent air pollution, the govern-ment should form laws and strictly enforce them. (2) Equipment for filtering. Smoke and toxic gas should be developed. (3) (Coal, Petrol, diesel etc. should be used as per requirement only (4) The use of pollution free CING, PNG, Solar energy etc. Should be encouraged. (5) Awareness should be spread to travel in public transport. (6) PUC should be strictly enforced for vehicles.

(4 ) Mention any four attempts of yours to prevent noise pollution. 

The measures to prevent noise pollution are as: (1) Sound Proof systems and curtains should be installed in Cinemas and public halls. (2) Unnecessary noise should be avoided in social occasions, festivals, inaugural functions etc. (3) More trees should be planted around airports and industries. (4) In places like school, hospitals etc. No horn', 'Silence Zone rule Should be strictly followed, (5) More uses of fire work in celebrations should be avoided.

8. Write geographical reasons of the following statements:

(1) Tides and ebbs occur in the sea.

 Twice a day sea-level rises and falls periodically. This phenomenon of rising and falling of the sea is called Tide and Ebb. At the time of high tide sea water bulges to the shore while at the time of Ebb' the sea water returns to the sea from the shore. The time interval between two tides. is about 12:25 hours. 

The moon tide occurs on the earth due to the gravitational force of the sun and the moon. The mass of the Sun is more than moon but it is far away from the earth so the gravitational force of the moon is more on the earth. Different parts of the earth face the sun and the moon at different times.

(2) Spring (High) tide occurs in the sea on New moon (Amavas) and Full moon (Poonam) day. 

On the day of the new moon (Amavas) and the full moon and the moon(Poonam), the sun, the earth come almost in a straight line. This Condition results in Spring (high) tide, But when the moon is in its' first and last quarter the gravitational Pull reduces to resulting in low tides.

Geography Lesson" poem by Zulfikar Ghose

  "Geography Lesson" by Zulfikar Ghose:

Question & answer

(1) How do the earth and other things look from the height?
From the height, the earth looked very beautiful and well-planned. Cities and land appeared organized, and rivers followed their natural paths. Everything looked neat and orderly from above.

(2) What was clear looking at the things from the height?
It was clear that the land and cities developed where there was water. The planning of the land was understandable, but the reason for hatred among people was not clear.

3. What lesson of Geography did the poet learn when he flew above his city?

When the poet flew above his city in a jet, he understood why the city had developed the way it did. He realized that cities are usually built near rivers and valleys because they provide water and fertile land. The planning of land and settlements became clear from the height.  He saw the earth seem to be a whole one but still people divided it by necessary borders. 

4. (1) What does the poet think when he goes up in the jet?

When the poet goes up in the jet, he thinks that the Earth's layout and human settlements make sense from a new perspective.

(2) How does the set up on the ground seem to the poet?

The setup on the ground seems quite disorderly.

(3) What, according to the poet, is 'inevitability'?

According to the poet, the way the city has developed is ‘inevitability’ means as the need arose it continued to progress gradually.

Stanza (2)
(1) What became clear to the poet when the jet soared ten thousand feet?

When the jet soared ten thousand feet, it became clear why cities are built near rivers and valleys and why certain areas are populated.

(2) What logic of geography is revealed in this stanza?
The logic of geography revealed in the stanza is that land and water attracted human settlement, so those are mostly cities.

(3) Pick out the refrain from the stanza.
The refrain from the stanza is "When the jet reached high the valleys are looking populated."

(3) Stanza Questions:

(1) What became clear to the poet when his jet rose six miles high?
When poet’s jet rose six miles high he saw that the earth was round and there was more sea than the land.

(2) What was difficult for the poet to understand?
For poet it was difficult to understand that why people on earth find reasons to and kill each other, why build walls across the land.

(3) What is the message that the poet wants to convey in the poem?
The message the poet wants to convey by his poem is that the world is whole and we all shall live together in harmony but even they all are hating each other

Class 7 The Rebel

 Class 7

English
Chapter -2 (Honeycomb) The Rebel

1. Answer the following questions.

(i)  When everyone wants a clear sky, what does the rebel want most?
Ans: When everyone wants a clear sky the rebel wants it to rain.

(ii) If the rebel has a dog for a pet, what is everyone else likely to have?
Ans: Everyone else is likely to have a pet cat.

(iii) Why is it good to have rebels?
Ans: It is good to have rebels because we get to see the way in which society looks towards him/her and if that is negative we will work on ourselves to not be a rebel.

(iv) Why is it not good to be a rebel oneself?
Ans: It is not good to be a rebel because it makes us intolerant towards the choices of others and may also feel unwanted and excluded from the group.

(vi)Why does the rebel choose to wear fantastic clothes? 

Ans: When the rebel sees everyone else dressed in a uniform, the rebel chooses to wear fantastic clothes.

3 Answer the following

(1) Why do rebels always contradict others? 

 Ans:The rebels always contradict the others because they wish to stand out to be different and distinguish themselves from the crowd. They wish to retain their voice and preferences as well as opinions rather than blindly following the crowd.

 (2) Why does society disapprove of the rebels? 

Ans:The rebels do not conform to the norms and conventions followed by society at large. They have their own. opinions, unique thinking, and are different, at times even go to the extent of contradicting and contradicting others, merely to highlight their perceived uniqueness.

4. Read the following stanzas and answer the questions given below them:

1. Stanza 

(1) With reference to the above extract, do you think it is good to be a rebel?

Ans:No, to go against the flow just to show that you are different or to prove your superiority is wrong. Unnecessarily breaking the rule unless there is some noble cause is not acceptable.

(2) Can there be a good reason behind remaining silent when everybody else is speaking? 

Yes, sometimes people keep arguing unnecessarily out of their ignorance of the entire and actual situation. In such situations, a wiseman stay silent. 

(3) What must of a the main motto of a rebel, in your opinion.

The main motto of a rebel is Bringing about the change.

2. Stanza 

(1) What decides the choices made by the rebel? 

Ans:The rebel's choices are based on what society would not accept or agree to.

(2) Who do you think is the character of rebel based on?

Ans:The character of rebel is based on a young child. 

(3) What does the rebel do?

Ans: The rebel defies others.