Which statement explains how smog forms?

a) volcanoes erupt and release ash into the sky.

b) strong storms pick up soil and mix it with fog.

c) sunlight and heat react with gases in the atmosphere.

d) gases move high into the atmosphere and then fall to earth in rain.

What is an animal that lives by preying on other animals

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u. s. fish and wildlife service