When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?

Fossil fuels are the fuels that are excavated from the deep layers of the earth. These fuels are produce deep layers of earth after millions of years of geological process. These includes coal, petroleum and natural gas. They are the rich source of carbon. When these fuels are burned they liberate carbon dioxide gas. This gas is responsible for increasing the temperature of the atmosphere. Hence, is responsible for the phenomena of global warming.

a neutral ph of 7 and normal organism temperature is needed for a certain enzyme to be effective.  

what would happen to the enzyme if the ph and/or temperature fluctuate greatly from the norm?  

a.the enzyme’s hydrogen bonds will break.  

b.the activation energy will increase.  

c.more product will be formed.

d.the ideal temperature and ph for the enzyme function will decrease.