InterviewSolution

Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.	How many tonnes of methane is produced by paddy cultivation ?A. 15 croreB. 12 croreC. 7 croreD. 21 crore
Answer» 15 crore tonnes of methane is produced by paddy cultivation.

2.	How many tonnes of methane gas is produced by decomposition of bio-degradable waste ?A. 7 croreB. 2 croreC. 9 croreD. 11 crore
Answer» Answer is A. 7 crore

3.	What is global warming ?
Answer» Global warming means unequal and continual rise in average temperature in Earth’s climate due to greenhouse effect. Certain gases trap infrared rays (UV radiation) so that the temperature of earth increases. The planet becomes warmer. This effect is known as ‘Global Warming’.

4.	List down the home appliances of daily use that add to global warming.
Answer» Home appliances of daily use that add to global “warming are televisions, air conditioners, tube lights, bulbs, computers, laptops, refrigerators, geysers, heaters, all types of vehicles like cars, buses, scooters, etc., all kinds of phones, electric motors, pumps, etc.

5.	What do you mean by ‘Greenhouse Effect’ ?
Answer» Countries with cold climate receive less heat from the sun. This hampers growth of plants and vegetables. Thus, arrangements are made to conserve heat by having a roof of glass or cloth to allow sunrays to reach inside and sustain heat which is created due to production of carbon dioxide and water vapour. This is known as ‘Greenhouse Effect’ and this type of farming is called ‘Greenhouse Farming’.

6.	Which of the following countries experiences maximum temperature ?A. IranB. BrazilC. PhilippinesD. Saudi Arabia
Answer» D. Saudi Arabia

7.	Which of the following countries gets maximum rainfall ?A. RussiaB. BrazilC. PhilippinesD. Iran
Answer» C. Philippines

8.

What kind of residence should we have to protect ourselves from the effect of increase in temperature ?

Answer»

To protect ourselves from the effect of increase in temperature :

The doors, windows and roof of our house should be constructed in such a way that they will allow enough sunlight and air into the house.
The roof should have a slope and the roof tiles should be so arranged that the roof does not get heated.
A chimney should be installed in the kitchen so that the smoke arising from cooking goes directly out of the house.

9.	Why are the doors and windows made of glass in countries that have cold climate?
Answer» Due to glass windows, solar heat which enters the house is retained inside the house. The house gets natural light during the day. Thus windows and doors of houses in cold regions are made of glass.

10.	We know that a definite quantity of sugar or salt has to be added in tea or vegetables. What would happen if we add more sugar or salt? In the same way, there is a balance of proportion of gases in the atmosphere. Imagine what would happen to this balance if the proportion of carbon dioxide increases in the atmosphere?
Answer» If the proportion of carbon dioxide increases in the atmosphere, the average temperature of the earth will rise. Carbon dioxide enhances the greenhouse effects. If that increases, climatic changes will become more acute.

11.

State whether the following statements are true or false:1. Our environment is polluted due to smoke from industries, factories, power stations and auto vehicles.2. The average condition of temperature, moisture and rain for a period of over 35 years is called ‘weather’.3. Problem of climate change has emerged due to reduction in greenhouse gases.4. The proportion of CO2 which was 275 PPM 100 years ago has increased to 350 PPM at present.5. The proportion of nitrous oxide which was 270 PPM before, is now 470 PPM.6. Beehives are disappearing fast due to global warming.

Answer»

1. True

2. False

3. False

4. True

5. False

6. True

12.	What is environmental change ?
Answer» Changes occuring in temperature, wind direction, rainfall, etc. due to global warming are known as ‘Environmental Changes’.

13.	What is atmosphere ?ORWhat is meant by atmosphere ?
Answer» The air that envelops Earth from all sides is called ‘atmosphere’.

14.	How is atmosphere polluted ?
Answer» Atmosphere is polluted by smoke from industries, factories, power stations, vehicles, domestic fuel, etc.

15.	When is ‘Ozone Day’ celebrated in the world ?A. 28th OctoberB. 16th SeptemberC. 1st JanuaryD. 5th June
Answer» B. 16th September