Two examples of how the biosphere supports life is by reducing the amount of harmful radiation to reach the surface of the earth. It also gives oxygen for animals to breathe
Two examples of radioisotopes that can be used are carbon-14 to determine the age of fossils. Second, we can use iodine-131 to treat thyroid disease.
Answer:
Because of using fossil fuels nowadays it is used to air pollute the earth causing global warming.
Explanation:
Answer:
yes
Explanation:
due to drift / variation human has been able to atttain high and advanced level of intelligence and development
<span>the molecule that carries the instruction for producing mRN is DNA</span>
