Question

select the text from the paragraph that best helps you understand that ushered means introduced something or brought it about. there may be more than one correct choice. the books central claim - that widespread pesticide use was the cause of significant harm to human health and to the environment - was highly controversial. conservationists, taking the books message to heart, succeeded in banning the use of ddt in the united states in 1972. others, however, pushed back against carsons claims. proponents of ddt usage pointed to the pesticide as a cost - effective means of controlling mosquito populations in parts of the world with high malaria rates. still, silent spring ushered in an era of greater awareness, leading people to start thinking more carefully about the environmental impact of chemical products.

Explanation:

The phrase "ushered in an era of greater awareness, leading people to start thinking more carefully about the environmental impact of chemical products" shows that "ushered" means introduced or brought about as it describes the book 'Silent Spring' bringing in a new era of awareness.

Answer:

"ushered in an era of greater awareness, leading people to start thinking more carefully about the environmental impact of chemical products"