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.
The Cold War
was a competition between the United States and the Soviet Union in
every conceivable arena – even space. When the Soviets launched the
world’s first artificial satellite, Sputnik I,
in October 1957, it set off alarm bells in the Eisenhower
administration and created intense fear and anxiety among the US public
that the Soviet Union had surpassed the technological achievements of
the United States.Sputnik orbited the earth and transmitted radio signals for twenty-one days before burning up in the earth’s atmosphere.<span><span><span>1^1</span>1</span>start superscript, 1, end superscript</span> Sputnik II was launched the following month, in November, carrying a dog named Laika. In May 1958, the Soviets launched Sputnik III,
which weighed almost three thousand pounds. Continuing their run of
successful launches, the Soviets in 1959 sent a space probe, Lunik III, to photograph the dark side of the moon.
here:
former secretary of defense Richard B. Cheney was choosen as the Republican nominee for video president in 2000
the spread of literature, art and the establisment of universities
Answer:
The motivations for the first wave of colonial expansion can be summed up as God, Gold, and Glory: God, because missionaries felt it was their moral duty to spread Christianity, and they believed a higher power would reward them for saving the souls of colonial subjects; gold, because colonizers would exploit resources
Explanation:
