Question 1

Question 1: A B C (1) Melting of snow (1) Increase in sea level (1) Flooding (2) Effects of insolation (2) Erratic rains (2) Increase in frequency of cyclones (3) Greenhouse gases (3) Methane

Accepted Answer

A B C (1) Melting of snow (1) Methane (1) Flooding (2) Effects of insolation (2) Average temperature of the earth (2) Agriculture (3) Greenhouse gases (3) Erratic rains (3) Existence of life on Earth (4) Climate change (4) Increase in sea level (4) Increase in frequency on cyclones

Question 2

Question 1: The causes of global warming- (a) Emission of greenhouse gases (b) Deforestation (c) Apparent movement of the sun (d) Industrialization

Accepted Answer

(c) Apparent movement of the sun

Question 3

Question 2: The indicators of climate change- (a) Retreat of glaciers (b) Increase in the frequency of floods (c) Increase in frequency of cyclones (d) Increase in the minimum and maximum temp

Accepted Answer

(d) Increase in the minimum and maximum temperature

Question 4

Question 3: The tools for studying climate change (a) Ice cores (b) Coral reef (c) Tree rings (d) Ancient forts

Accepted Answer

(d) Ancient forts

Question 5

Question 4: Measures to combat climate change – (a) Banning the use of pesticides and insecticides (b) Promoting afforestation and banning deforestation (c) Banning public transport (d) Bannin

Accepted Answer

(c) Banning public transport

Question 6

Question 1: It is important to study climate change.

Accepted Answer

It is important to study climate change because –

Question 7

Question 2: There is a great possibility that we may not see Maldives on the world map in the future.

Accepted Answer

There is a great possibility that we may not see Maldives on the world map in the future because-

Question 8

Question 3: The snowline is retreating.

Accepted Answer

The snowline is retreating because –

Question 9

Question 4: There is an increase in the frequency of droughts and cyclones.

Accepted Answer

There is an increase in the frequency of droughts and cyclones because-

Question 10

Question 1: Bleaching of coral reefs

Accepted Answer

Step-by-step solution provided.

Question 11

Question 2: Flash floods

Accepted Answer

Step-by-step solution provided.

Question 12

Question 3: Tools to study Paleoclimatology

Accepted Answer

Paleoclimatology is the study of the weather and climate of the earth’s past. Scientists and meteorologists have been using instruments to measure climate and weather for the past 140 years. However, millions of years ago historical evidence called proxy data, which includes coral reefs, tree rings,

Question 13

Question 4: Greenhouse gases

Accepted Answer

Step-by-step solution provided.

Question 14

Question 1: Climate change has not always been anthropogenic in nature. Explain.

Accepted Answer

Though the human activities are a major cause behind climate change, there are some natural causes for climate change. They are as follows: Amount of energy output by the sun:

Question 15

Question 2: What measures will you suggest to combat climate change in your village/city.

Accepted Answer

Following measures can be taken to combat climate change in our village / city.

Question 16

Question 1: In which year is the difference the least? Ans. Difference in the temperature is least in the year 1985. Question 2. What is the difference between the mean temperatures of the twe

Accepted Answer

The difference between the mean temperature of twentieth century (1995-2000) and 2015 is 0.8°C.

Question 17

Question 3: Why do the temperatures differ in different months?

Accepted Answer

The temperature differs in different months because of the occurrence of different seasons.

Question 18

Question 1: What does this graph show? Ans. The graph shows CO2 concentration (ppm) and its increased level over the period of time from 1900 to 2017. Question 2. What does ppm mean?

Accepted Answer

The abbreviation ppm means ‘parts per million’ of carbon concentration in the atmosphere.

Question 19

Question 3: Since which year has the increase been phenomenal?

Accepted Answer

After 1980, there has been a phenomenal increase observed.

Question 20

Question 4: Can you think of the reasons behind the increase in carbon dioxide?

Accepted Answer

The reasons behind the increase in carbon dioxide is due to combustion of fossil fuels and large- scale deforestation.

Question 21

Question 1: Which of these gases has the highest contribution?

Accepted Answer

Water vapour, shows the highest contribution.

Question 22

Question 2: Which of these gases came from natural and man-made sources?

Accepted Answer

Water vapour, methane, NO2 and miscellaneous gases are naturally occurring gases while CO2 is man-made.

Question 23

Question 3: Which activities are responsible for their emission?

Accepted Answer

Burning of fossil fuels like coal, etc., and deforestation are responsible for emission of CO2.

Question 24

Question 4: Out of these, whose emission can be controlled by humans? Ans. The emission of CO2 can be controlled by humans. Question 2. Make a list of things you need to change in your lifesty

Accepted Answer

Step-by-step solution provided.

Question 25

Question 1: Use internet and reference books on climate change and make a list of species vulnerable to climate change.

Accepted Answer

Species vulnerable to climate change are: corals, polar bear and frogs.

Question 26

Question 2: Make a list of movies based on ice age and climate change. (Textbook Page No. 65)

Accepted Answer

Step-by-step solution provided.

Question 27

Question 3: With the help of internet, find out the details of the National Action Plan on Climate Change (NAPCC), 2008 and its missions. (Textbook Page No. 66)

Accepted Answer

NAPCC is a government document that includes eight ambitious goals set for the country to achieve.

Question 28

Question 1: What does the graph show?

Accepted Answer

The graph shows an increase in the global sea level from 1880 till date.

Question 29

Question 2: In which year is the change around 225 mm?

Accepted Answer

The change around 225 mm is observed is the year 2018.

Question 30

Question 3: What conclusions can you draw by seeing the graph?

Accepted Answer

With the continued global warming the sea levels are likely to rise.

A	B	C
(1) Melting of snow	(1) Increase in sea level	(1) Flooding
(2) Effects of insolation	(2) Erratic rains	(2) Increase in frequency of cyclones
(3) Greenhouse gases	(3) Methane	(3) Agriculture
(4) Climate change	(4) Average temperature of the earth	(4) Existence of life on Earth

A	B	C
(1) Melting of snow	(1) Methane	(1) Flooding
(2) Effects of insolation	(2) Average temperature of the earth	(2) Agriculture
(3) Greenhouse gases	(3) Erratic rains	(3) Existence of life on Earth
(4) Climate change	(4) Increase in sea level	(4) Increase in frequency on cyclones 2. Identify the incorrect factor. Question 1 Maharashtra Board Solution The causes of global warming- (a) Emission of greenhouse gases (b) Deforestation (c) Apparent movement of the sun (d) Industrialization Solution & Step-by-Step Answer: (c) Apparent movement of the sun Question 2 Maharashtra Board Solution The indicators of climate change- (a) Retreat of glaciers (b) Increase in the frequency of floods (c) Increase in frequency of cyclones (d) Increase in the minimum and maximum temperature Solution & Step-by-Step Answer: (d) Increase in the minimum and maximum temperature Question 3 Maharashtra Board Solution The tools for studying climate change (a) Ice cores (b) Coral reef (c) Tree rings (d) Ancient forts Solution & Step-by-Step Answer: (d) Ancient forts Question 4 Maharashtra Board Solution Measures to combat climate change – (a) Banning the use of pesticides and insecticides (b) Promoting afforestation and banning deforestation (c) Banning public transport (d) Banning fossil fuels Solution & Step-by-Step Answer: (c) Banning public transport 3. Give geographical reasons. Question 1 Maharashtra Board Solution It is important to study climate change. Solution & Step-by-Step Answer: It is important to study climate change because – Question 2 Maharashtra Board Solution There is a great possibility that we may not see Maldives on the world map in the future. Solution & Step-by-Step Answer: There is a great possibility that we may not see Maldives on the world map in the future because- Question 3 Maharashtra Board Solution The snowline is retreating. Solution & Step-by-Step Answer: The snowline is retreating because – Question 4 Maharashtra Board Solution There is an increase in the frequency of droughts and cyclones. Solution & Step-by-Step Answer: There is an increase in the frequency of droughts and cyclones because- 4. Write short notes on. Question 1 Maharashtra Board Solution Bleaching of coral reefs Solution & Step-by-Step Answer: Question 2 Maharashtra Board Solution Flash floods Solution & Step-by-Step Answer: Question 3 Maharashtra Board Solution Tools to study Paleoclimatology Solution & Step-by-Step Answer: Paleoclimatology is the study of the weather and climate of the earth’s past. Scientists and meteorologists have been using instruments to measure climate and weather for the past 140 years. However, millions of years ago historical evidence called proxy data, which includes coral reefs, tree rings, ice cores, etc., were used to tell about the climate. Coral reefs: Tree rings: Ice cores: Question 4 Maharashtra Board Solution Greenhouse gases Solution & Step-by-Step Answer: 5. Answer in detail. Question 1 Maharashtra Board Solution Climate change has not always been anthropogenic in nature. Explain. Solution & Step-by-Step Answer: Though the human activities are a major cause behind climate change, there are some natural causes for climate change. They are as follows: Amount of energy output by the sun: Milankovitch Oscillation: Volcanism: Goldilocks Zone: Question 2 Maharashtra Board Solution What measures will you suggest to combat climate change in your village/city. Solution & Step-by-Step Answer: Following measures can be taken to combat climate change in our village / city. 11th Geography Digest Chapter 5 Global Climate Change Intext Questions and Answers Can you tell? (Textbook Page No. 58) 1. The graph in the figure shows the difference between the global average temperature of the twentieth century and global monthly temperatures from 1985 to 2015. Answer the questions given below. Question 1 Maharashtra Board Solution In which year is the difference the least? Ans. Difference in the temperature is least in the year 1985.

Chapter 5 Global Climate Change Solutions