Y8 Climate Change

Question 1

Name all the evidence of climate change.

Answer 1

Temperature change over past 1k years
Global temperature and co2 emissions,
Glacial retreat, glacial change, vanishing islands, warming up, death of species, extreme weather around the world,

Question 2

Where do we find historic data from?

Answer 2

Tree rings, ice cores, historical sources

Question 3

Step by step greenhouse effect.

Answer 3

1. Sun’s rays travel through atmosphere
2. The surface of the earth is warmed
3. Heat is reflected from the surface
4. Some heat escapes
5. Some heat is reflected back by greenhouse gases
6. Extra carbon is produced

Question 4

What is the natural greenhouse effect?

Answer 4

The effect of natural greenhouse gases trapping infrared rays in the atmosphere.

Question 5

What is the human enhanced greenhouse effecr?

Answer 5

When the natural greenhouse effect is boosted through man-made / produced greenhouse gases.

Question 6

How are humans changing the carbon cycle?

Answer 6

Through producing greenhouse gases and burning fossilised plants and animals.

Question 7

Which countries are most to blame for climate change

Answer 7

China because of co2 production, uk and us through revolutionising use of machinery.

Question 8

Which industries are most to blame

Answer 8

Oil, shipping, gas

Question 9

How will the UK be affected by climate change?

Answer 9

More floods, warmer temp, new species of animals migrating, more storms, rising sea levels,

Question 10

How will the maldives be affected by climate change?

Answer 10

Majority of island underwater, coral bleaching, less freshwater, loss of tourism, erosion of beaches

Question 11

How is london an unsustainable city?

Answer 11

A large majority of london’s power is non renewable.

Question 12

What factors does bedZED impliment to make their rooms efficient but cheap?

Answer 12

Windows to maximize sunlight and heat, insulated thick walls to keep heat in, all energy efficent appliances, solar panels for energy,

Question 13

What is a pro of solar energy?

Answer 13

Renewable, works all year round, almost free to maintain

Question 14

What is a con of solar energy

Answer 14

Doesn’t work when it is very cloudy / dark, expensive to buy

Question 15

Pro of tidal energy

Answer 15

The uk has one of the greatest tidal differences

Question 16

Con of tidal energy

Answer 16

May disrupt life in the water, very expensive

Question 17

How much was it to make swansea tidal bay

Answer 17

1.3b pounds

Question 18

What is the carbon cycle?

Answer 18

Carbon is absorbed by plants, plants are eaten by animals, animals die and fossilize and carbon is deposited into the air

Question 19

What are some pros of climate change?

Answer 19

Oranges and peaches can be grown in the uk, higher crop yield in northern britain, new species of fish moving to the britain

Question 20

What are some facts about bedzed

Answer 20

52 percent of materials used are found within 35 miles, buildings face south for maximum sunlight, windows are triple glazed to maximize solar gain, roof designed to collect rainwater

Question 21

What warming power does methane have as a ratio to co2

Answer 21

21:1

Question 22

What warming power does nitrous oxide have relative to co2

Answer 22

250x

Question 23

What warming power do halocarbons have relative to c02

Answer 23

3000x

Question 24

How long was the swansea bay tidal lagoon

Answer 24

9.5km

Question 25

How many homes would the swansea bay tidal lagoon power?

Answer 25

150,000

Question 26

Why is nuclear energy not renewable?

Answer 26

It uses uranium which is limited