pearson year 8 quiz

global warming can lead to

• climate change

• melting ice caps

• over heating of the earth

• all of the above

how is the earths energy trapped?

• by a big bubble

• greenhouse gases

• biofuel

• fossil fuels

where does most of the energy that warms the earths surface come from

• the moon

• the sun

• greenhouse gases

• aliens

name the main gas that causes greenhouse effect

• carbon dioxide

• hydrogen

• oxygen

• carbon monoxide

carbon monoxide is mainly gas that reacts partly with oxygen is an example of

• complete combustion

• philogiston

• incomplete combustion

• greenhouse

name a common impurity caused by pollution

• sulfur dioxide

• nitrogen dioxide

• pollutants

• a and b only

what is a main trigger for asthma coming from vehicle exhaust

• smog

• pollen grains

• soot

• cats

the fire triangle is made of oxygen heat and hydrogen

• true

• false