Read the paragraph from the introduction [paragraphs 1-3].
Global warming is the heating up of
Earth's climate. It is also called climate
change. Scientists think that it comes
from the fuel that people use. People
burn these fuels to make energy. Many
things from cars to lights run on this
energy.
What is the main idea of the paragraph?
A Global warming is caused by the fuels people
B global warming is causing earth to run out of fuel
C earth’s climate can get very hot
D earth’s climate changes during the year

The correct answer is A. Global warming is caused by the fuels people.

Explanation

According to the paragraph, it can be inferred that its main idea is "A. Global warming is caused by the fuels people" cause the author first expresses the problem of global warming by saying that "Global warming is the heating up of Earth's climate. It is also called climate change "and later states the cause of this problem by saying that" Scientists think that it comes from the fuel that people use. People burn these fuels to make energy. Many things from cars to lights run on this energy ". Therefore, it can be said that the correct answer is A.

the illustration   that would give a reader a clear understanding of the text is a picture of men constructing the frame of a building.the frame is made of iron bars. the text describes the job of blacksmiths'. these were very organised and they had different names: "the driver" and "the heater". the text describes the way in which these men worked ; they worked iron pieces as if they were playing a sport. in fact, the text wants to show the men's skills. the text also puts some emphasis on the use of '' rivets'' in construction. this kind of nails were not always used in the construction of manhattan.

some examples:

"and with an underhand toss he hurled the smoking rivet straight at the catcher, who caught it in mid-air in his catching can." men's skills

"when the driver was ready for a new " the emphasis on the rivet ( special nail used in construction).

" it against a beam to remove any cinders, and jammed it into the waiting hole. " the emphasis on the rivet.

i'm pretty sure i had this question the other day and b was the right answer.