Select all the correct answers. Which two statements about composite materials are true? They’re made up of more than one substance. They have the same or similar properties as the materials used to make them. They’re always made of metal. They’re readily available in nature.

i'm sorry, but can you list the answers? i cannot with something i don't know the answers to

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chris

answer; i believe the correct answer is (sporophyte);

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.