Answer:

Explanation:
700 is not a good estimate for the sum of 435 and 368.
Round the numbers to nearest hundreds.


Let’s add the estimated numbers.

800 is a good estimate for the sum of 435 and 368.
because humans count on coral reefs and the sealife they support,coral reefs should be able to count on humans too.
Answer:
Among the options given below the correct answer is option B.
Too much comfort and lack of work will make humans weak and unintelligent.
Explanation: Eloi is one of the two fictional post human raced in H. G. Well's The Time Machine. The another one is Morlocks.
According to the story Eloi live a banal life which is consist of comfort and ease on the surface of the earth. On the other hand Morlock live in the underground and work for the Eloi class. Based on the circumstances the Eloi falls into darkness. Eventually they are dissolved and eaten by the Morlocks. Their lazy life and too much comfort led them to this conclusion.
So, the writer H.G. Wells conveyed that warning through the story of Eloi that too much comfort and lack of work will make humans weak and unintelligent.