When crude oil is spilled in the ocean, how is the ecosystem affected? a. the supply of nutrients is increased. b. the consumers produce more energy. c. hydrogen is removed from water molecules. d. coral reefs and other fish habitats are destroyed.

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.

Cells a and b are the same size and shape, but cell a is metabolically quiet and cell b is actively consuming oxygen. oxygen will diffuse more quickly into cell because . b the oxygen molecules inside cell b have a higher kinetic energy b. a its membrane transport proteins will not be saturated c. a the diffusion gradient there is shallowerd. b the diffusion gradient there is steeper