They could improve the experiment that they made by adding another variable such as: watering the plants with fresh water. This way they could have a better comparison how plants grow based on the type of water they are exposed with.
Aerobic respiration takes place inside the mitochondria.
I think that they look towards the rain forests because there is always new or similar species with in the forests. They might need to see if they can find more to the species and see if they are going extinct. They would do anything to help the plants and animals survive and populate.
An _observation_ is taken using the senses
A committee that jointly creates a compromise bill is called the conference committee. This committee creates compromises in the legislation. The correct answer is A.
