Burning fossil fuels a) can cause acidification in oceans
B) increase is polar bear reproduction
C) helps shelled animals to create more calcium carbonate

a benefits of recycling is
A) it conserves natural resources such as Timber water and animals
B) it increases landfills and incinerators
C) it uses more energy

how can global warming cause sea levels to rise
A) the melting of glaciers and ice caps
B) more rain falling
C) increasing of undersea volcanic eruption

the gradual increase in the temperature of the atmosphere is called
A) greenhouse gases
B) methane
C) global warming

which of the following is not a Cause for global warming
A) burning fossil fuels
B) planting new trees
C) having too many cow

which layer of the atmosphere do humans live in
A) sratosphere
B) troposphere
C)meosphere

when a volcano erupts an S is thrown into the air the interaction is between
A) hydrosphere and geosphere
B) geosphere and atmosphere
C) atmosphere and hydrosphere