Answer:
Its a unprecedented increase in agriculture in britain due to increases of labor and land productvity.
The opinions and prejudice of an author in writing.
I believe that those two elements greatly affect bias in history because we can never be 100% sure of everything that (may have) happened in history (especially farther in the past), so opinion can affect a historian's writings. Also, everyone is prone to some sort of prejudice, so this can also affect history.
The perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction
The answer to this would be A, because they began to spread westward once they decided to head away from the Arctic.
The answer is C, to figure it out take all the numbers and multiply by .10
