Human activities release 9 gigatons of carbon into the atmosphere each year.
Human activities remove 5 gigatons of carbon from the atmosphere each year.
Humans’ net contribution of atmospheric carbon to the atmosphere is 4 gigatons each year.
Answer:
During cellular respiration, glucose loses electrons wheras oxygen gains electrons.
Explanation:
<span>b. Growth of a tumor
</span><span>The phenomenon of contact inhibition occurs when normal cells doesn's stop dividing when in collision with another cell which triggers cancerous cells.</span>
Answer: I think it‘s 1, it just makes more sense. Sorry if I am wrong but hope this helps anyone.
