Which of the following could be one reason why the earth is getting warmer? a. large glaciers are melting in antarctica. b. the earth is moving closer to the sun. c. gasoline-powered cars that trap heat in the atmosphere. d. more animal speciesare becoming extinct.

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i