How do landfills contribute to global warming? a. they keep people from recycling. b. animals become dependent on landfills for resources. c. they take up valuable space. d. they produce methane, a greenhouse gas.

What makes the results of a scientific experiment accurate? a) having multiple trials b) lacking any supporting data c) working in a lab d) using a hypothesis that is always true

Consider an organism that is eukaryotic, found in both unicellular and multicellular forms, may resemble a plant but is not photosynthetic, has chitin in its cell walls, and absorbs organic nutrients from decomposing material in the environment. this organism would be classified as which of the following types of organisms? a. fungib. protozoac. bacteriad. archaea

What causes darkening of the skin as melanin production increases