Which of these processes has a cooling effect on earth? a. as snow and ice melt, the underlying surfaces absorb heat from solar radiation. b. earth's oceans absorb some of the carbon dioxide from the atmosphere. c. when permafrost melts, methane is released into the atmosphere. d. burning fossil fuels increases the concentration of greenhouse gases in the atmosphere. this is for appex.

Pick twenty foods and research the amount of total carbohydrates, sugars, and other carbohydrates in them. note: most food labels have this information. record your findings.

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods. c. it shows that these organisms share the same habitat. d. it provides evidence that these organisms suffered a genetic mutation.