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.
Decreasing the size of government so he could spend 7 trillion dollars on one covert operation Ivory Bells Bob Woolworth Vail Secret War of CIA First Edition--Fight an unconstitutional war with Contras and spend hundreds of trillions of dollars on unneeded missile system and overpriced jet bomber.
<span>The main way in which reasons for moving today, are similar to people in ancient history. Is because people have always moved to acquire better living conditions food shelter, and more. </span>
C. because this case were about a girl cannot go to a public school near her home.
