Answer:
Its a observational study.
Explanation:
Because of the observation that the other teacher made
I like to make flash cards and have someone else help with answering. Write a question on one side and the answer on the other, and you can even do it yourself.
True.
Nitrogen-fixing bacteria, microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen (inorganic compounds usable by plants). More than 90 percent of all nitrogen fixation is effected by these organisms, which thus play an important role in the nitrogen cycle.
X is equal to 3.3 cm. You can find this by looking at the rate in volume of oxygen collected in 20 mins and the rate of photosynthesis; each value is multiplied by three to get the answer. Therefore, 1.1 x 3 = 3.3, which is your answer