Answer:
D) to protect the United States in the event of a war
Explanation:
Answer:
Humans have complex social skills.
Explanation:
Apes have been know to communicate using sign language,
Chimps use sticks as a type of tool to help them look for food,
Dogs use rational thought, because they are able to remember the past.
so the rational or best answer is <em>(Humans have complex social skills) </em>
Answer:
plants
Explanation:
plants need carbon dioxide to survive, so if they cant take Co2 they cant make oxygen meaning no human life.
Answer:
the amount of CO2 on the atmosphere is increasing and may be leading to Global warming. in many countries, TREES, are being cut down and DEFORESTED, which adds CARBON DIOXIDE to the air. It also removes TREES that could have used up Carbon to produce OXYGEN
