Answer:
evolution
Explanation:
For example, scientists believe that monkeys have evolved to become humans.
This clearly has happened over many millions of years.
Monkeys look really different from humans (don't you think!?).
This was just a random example that came to my head.
Hope this helps.
-Gumina
Answer:
1: Burning of fossil fuel
2: Deforestation
3: Waste disposal in landfills
Explanation:
Burning of fossil fuel is the one of the primary cause of increased level of carbon dioxide in air. Deforestation refers to uncontrolled cutting down of trees which in turn increases the level of carbon dioxide in air. Plants are the natural resources that remove the carbon dioxide from air through the process of photosynthesis. Waste disposals in landfills emits methane which is one of the greenhouse gas.
To make the risk of getting cancer again and not surviving clear to everyone
Yes. A person comes across many colds in a year or a life time and produces antibodies for each. Babies get many colds in the first years and fewer as they <span>get older because they have made antibodies.</span>