Answer:
<em>Carbon dioxide (CO2) is the primary greenhouse gas emitted through human activities. </em>
If I remember correctly, it's the Independent variable, since the amount of sunlight (determined by where the plant was placed) controls how much it grows, but I'm not 100% sure. I know for certain that it's not 2 or 3.
Answer: you keep from committing fornication and adultery by staying faithful to your partner
Ecosystems have trouble adjusting to short-term changes - This is false.
Eco system changes can be long term and short term. Few short-term environmental changes that can change an eco system are - drought, smog, volcanic eruptions, floods etc. An ecosystem can easily adapt to short-term changes. For example, after a forest fire plants can re-grow from their roots. Many species have features to help them cope with natural, short-term environmental changes.
Answer:
all of the above is correct.
