Who reviews articles for peer-reviewed journals? a. friends of the scientists who wrote the articles b. anonymous and independent experts c. the scientists who did the experiments d. people who paid for the experiments

Air pollution is only caused by human activity, select the best answer from the choices provided ot of true or false

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex