Which of the following does not act as a greenhouse gas and why? * A) Methane because the chemical bonds are stable and allow energy to pass through the
molecule with very little molecular movement and reradiation
B) Methane because its structure allows for high movement and energy to be reradiated
back to Earth
C) Oxygen gas because the chemical bonds are stable and allow energy to pass through
the molecule with very little molecular movement and reradiation
D) Oxygen gas because its structure allows for high movement and energy to be
reradiated back to Earth

Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution

In which situations is the principle of cross-cutting relationship useful in determining relative age?

What is turgor pressure, what causes it, and what does it do for a plant?