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.
Mountains, valleys, rivers, lakes, and canyons
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India's desire for Independence, which was how the country expressed its nationalism, goes back to 1850s. One of the major aspects of the growth of Indian nationalism prior to WW2 was Gandhi's policy of non-cooperation with the British, which was a part of the "Quit India Movement", urging the British to withdraw from India.
Answer:
Emperor Charles VI created Lichtenstein
