IGCSE - Greenhouse effect and Global warming

What are a group of greenhouse gases used in a refrigerator known as?

• CFC’s

• Carbon dioxide

• Nytrus oxide

• Oxygen

What is used in many fertilisers which is a greenhouse gas.

• Nytrus oxide

• Oxygen

• Nitrogen

• Methane

Greenhouse gases prevent release of heat in the?

• Space

• Stratosphere

• Troposphere

• Thermosphere

Which gas may be produced in intensive livestock farming?

• Methane

• Carbon dioxide

• Oxygen

• CFC

Bromofluorocarbons protect the ozone layer

• True

• False

Use of solar energy increases global warming

• True

• False

Causes of global warming

• Forest fires

• Fluorescent bulbs

• Deforestation

• Solar energy

Choose the correct cause of deforestation

• Cutting trees for manufacturing furniture

• Too many herbivores are present

• Too many omnivores

• Less carbon dioxide

Turning off electronic devices when not in use reduces global warming

• True

• False