The greenhouse effect is a result of a. aerosolization of dust and gases produced by volcanoes. b. reflection of solar energy by cloud cover. c. absorption and radiation of energy in the atmosphere. d. absorption and radiation of energy in the hydrosphere.

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes