Which of the following is a negative consequence of scientific advancements on society?
a. increased life expectancy
b. increased pollution
c. new energy resources
d. all of the above

The answer is the option b, increased pollution. While, increased life expectancy and new energy resources are positive consequences of scientific advances, indeed pollution, which is a negative thing, has increased as consequence of the use the tecnology derived of scientific advancementes. You can think about the pollution generated by plants and cars, for example.

Lilas job is a secretary

Ican only answer your first question, a machine is like a human body because it's a little similar. they both almost work like the same.