Read the passage Metamorphosis is the process by which caterpillars become butterflies and tadpoles become frogs. It is a process studied by young children in school and by scientists who want to understand how pollution affects an eco-system. But change is not just a scientific phenomenon. It is a part of life. We experience it every day.

Which best expresses the main idea?

most likely the answer would be a.) cupidity

definitions:

cupidity - greed for money or possessions

hydrophobia - extreme or irrational fear of water, especially as a symptom of rabies in humans

pathology - the science of the causes and effects of diseases, especially the branch of medicine that deals with the laboratory examination of samples of body tissue for diagnostic or forensic

patho -   relating to disease

“way of writing” should be replaced with “writing style"

“idea” should be replaced with “purpose.”

maybe   “people from a long time ago” should be replaced with “elizabethans.”

the correct answer is d. gerunds. hope this