Answer:
yellow fever is caused by a virus that is spread by the Aedes aegypti mosquito. These mosquitoes thrive in and near human habitations where they breed in even the cleanest water. Most cases of yellow fever occur in sub-Saharan Africa and tropical South America.
Explanation:
If your options are these:
<span>A) It is very difficult to fully enjoy nature by oneself.
B ) To experience nature to its fullest requires mental effort.
C) No human being can fully and truly experience nature.
D)The enjoyment of nature is something that takes practice.
It might be said that the best option is B </span>To experience nature to its fullest requires mental effort because Emerson believed that the power in nature is due to nature and to human´s intelligence. What is more, Nature could help "individuals to be more content within society".
The correct answer is letter b.
The excerpt is written in the Simple Past and narrates a series of events that happened in a sequence.
Notice the verbs in the Simple Past : wept, wailed, fell, faded and died.
There is a verb missing in the part " the earth stiff and cold" The verb is grow, the Simple Past form is grew, therefore " the earth grew stiff and cold" is the correct way.
Letter A is wrong because there's a verb missing.
Letter C and letter D " the earth was growing stiff and cold" the verb grow is in the Past Continuos, " the leaves were falling from the sorrowing trees" the verb fall is also in the Past Continous breaking the pattern stablished.
