Chap 4 20 of 5

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Harnessing the sun\\\'s energy to produce heat or electricity is

Placer deposits form when

What is one of the drawbacks to the extensive use of solar energy

Which of the following non metallic meneral resources is used both as a building material and as an industrial mineral

The advantages of solar energy include the fact that it is

Vein deposits are usually produced by

The fuel for nuclear fission in nuclear reactors is

Which of the following is a problem associated with the increased use of nuclear energy