3) Greenhouse Gasses

Question 1

What is the ozone layer? (2)

Answer 1

• It’s the area 20-30 km above the earths surface

- It prevents harmful ultraviolet parts of sun rays from reaching earth

Question 2

Discuss the hole in the ozone layer? (4)

Answer 2

• Holes in the ozone layer have been appearing since 1970
• In the areas where there isn’t an ozone layer, rays can get through
• Humans are exposed to the rays, causing helth problems
  • like skin cancer + eye damage

Question 3

What are greenhouse gasses? (2)

Answer 3

• The layer around the earth is called the atmosphere

- Some of the gasses making up the atmosphere are greenhouse gasses

Question 4

Why are greenhouse gasses bad? (3)

Answer 4

• Sun rays come through the atmosphere
• Greenhouse gasses trap the rays’s heat
• Makes the temperature on Eartg warmer, causes global warming

Question 5

Why are greenhouse good/necessary? (3)

Answer 5

• We do need some greenhouse
• Without them, the Earth’s temperature will be freezing cold
• The amount of greenhouse gasses are rising because the Earth’s temperatures are rising