Answer: C. Grow the tree in a pot and measure the mass of the soil before and after the tree grows to a certain height
Explanation: When testing an hypothesis, which is a prediction of the outcome of an experiment, it is vital to keep all other factors, that can affect the outcome of the experiment, constant; so that any outcome can be attributed (or disregarded) to the variable being tested.
In this case, the variable being tested is the soil, and so all other factors such as water, air, sunlight, etc. should be kept constant.
It can't be D. because Alexander died suddenly, not in war. Cant be C. because he died peacefully, and it can't be A, because he only met alexander like once or twice
The largest number of slaves sent to the Americas were sent to ''The islands of the Caribbean''.
