Climate change

Question 1

What does the quaternary period include?

Answer 1

The whole of human history.

Question 2

What is the time span of the quaternary period?

Answer 2

2.6 million years ago to present day.

Question 3

How long do cold glacial periods last?

Answer 3

100,000 years.

Question 4

How long do warmer glacial periods last?

Answer 4

10,000 years.

Question 5

How many quaternary period have their been?

Answer 5

Around 20.

Question 6

When did the last glacial period end?

Answer 6

15,000 years ago.

Question 7

Name 2 ways you can get evidence for climate change from natural sources?

Answer 7

1 - Tree rings

2- Temperature records

Question 8

How can you tell climate change from Tree Rings?

Answer 8

The tree grows a new ring in the trunk each year. The rings are thicker in warm, wet conditions. Scientists take the cores and count rings to find age of the tree and to see the thickness of each ring to show what the climate was like.

Question 9

How long has tree rings been a reliable climate change detector for?

Answer 9

10,000 years.

Question 10

How can you tell climate change from Temperature Records?

Answer 10

Since 1850s global temperatures have been measured accurate by using a thermometer. This gives a reliable but short-term result, but Historical Records can extend the records of climate change further back.

Question 11

Name 2 Natural Factors that can help cause climate change?

Answer 11

1- Orbital Changes

2- Volcanic Activity

Question 12

How does Orbital Changes affect climate change?

Answer 12

By the earths orbit of the sun being a almost perfect circle to an eclipse and back again every 96,000 years. These affect the amount of solar radiation, if more energy the earth gets warmer.

Question 13

What may Orbital Changes may have caused?

Answer 13

The glacial and interglacial cycles of the Quaternary period.

Question 14

How does Volcanic Activity affect climate change?

Answer 14

By ejecting large quantity’s of material into the atmosphere, these particles reflect the suns rays back out to space so the earth cools. They also release CO2 , this may cause short-term changes in the climate.

Question 15

Name 2 Human Activities that can help cause climate change?

Answer 15

1- Burning Fossil Fuels

2- Cement Production

Question 16

How does Burning Fossil Fuels affect climate change?

Answer 16

When CO2 is released into the atmosphere by burning fossil fuels.

Question 17

How does Cement Production affect climate change?

Answer 17

Cement is made from limestone, which contains carbon. When cement is produced lots of CO2 is released into the atmosphere.

Question 18

By what *c are the temperatures suppose dot have raised by 2100?

Answer 18

0.3 - 4.8*c

Question 19

What happens to Glaciers because of global warming?

Answer 19

Glaciers are shrinking, and the melting of ice on land especially the Antarctic ice sheets are stored n land as ice returns back to the ocean causing sea level rise.

Question 20

What happens to Precipitation because of global warming?

Answer 20

Precipitation patterns are changing, affecting how much rain an area gets.

Question 21

What happens to different Species because of global warming?

Answer 21

Species are declining or are becoming extinct due to warming e.g. coral reefs are suffering from bleaching due to increasing sea temperatures.

Question 22

How is migration affected by global warming?

Answer 22

By low-lying areas being flooded or lost at sea, or being impossible to inhabit this then leads to migration.

Question 23

How is lower crop yields affected by global warming?

Answer 23

This can cause malnutrition, ill health and death from starvation (partially in lower latitudes)

Question 24

Has deaths due to heat started to increase or decrease?

Answer 24

Increase, deaths from cold has decreased

Question 25

Name 2 ways of managing climate change……

Answer 25

1 - Planting Trees

2 - Carbon Capture

Question 26

How does Planting Trees manage climate change?

Answer 26

By planting the trees increases the amount of carbon dioxide that is absorbed from the atmosphere.

Question 27

How does the carbon dioxide get absorbed into the trees?

Answer 27

Photosynthesis.

Question 28

How does Carbon Capture manage climate change?

Answer 28

It reduce emissions from fossil fuel burning power stations. CCS(Carbon Capture and Storage) involves capturing CO2 and transporting it to places where it can be stored safely.

Question 29

Where is a good place that CO2 can be stored safely?

Answer 29

Underground.

Question 30

How do people adapt to changes caused by Climate Change by managing their water supplies?

Answer 30

• Managing water supply using water meters which can discourage people from wasting a lot of water and collecting rainwater.

Question 31

How do people adapt to changes caused by Climate Change by changing agricultural systems?

Answer 31

• To plant new crop types which are more suitable to new climate conditions.

Question 32

What technology is used to create more varieties in crops for extreme weather in some regions?

Answer 32

Biotechnology.