Ronald Reagan was the one to cut the EPA's budget, the continental shelf was opened to oil and gas drilling.
I inferred you are referring to the article found here https://kids.nationalgeographic.com/explore/science/green-invaders/
<u>Explanation:</u>
The tiny invaders being discussed in this article are <u>plants.</u> These plants are considered are invaders because they come from other countries, but are now threatening the existence of the country's native plants. They were brought in by people because they wanted to make their gardens and yards look beautiful since they rarely found locally.
It is like interpreting the economic and political societies to determine how businesses are succeeding.