Answer:A modal is a type of auxiliary (helping) verb that is used to express: ability, possibility, permission or obligation. Modal phrases (or semi-modals) are used to express the same things as modals, but are a combination of auxiliary verbs and the preposition to. The modals and semi-modals in English are:
Can/could/be able to
May/might
Shall/should
Must/have to
Will/would
Explanation:
Answer:
a cause to its effect
Explanation:
Since the boy threw the rock it broke the window
Riding a bicycle would reduce air pollution. It would also
A) decrease noise pollution.
The text mentions "noise pollution caused by cars, trucks, and machines".
So the answer is A as riding a bicycle would mean leaving a car, which is a source of noise polution, in the garage. As a result, noise pollution would be decreased.