Plant Matter Is Composed Mainly of Carbon, Hydrogen, and Silicon

Q39: _ energy resources are replenished by natural

Q40: The major fuel in nuclear power plants

Q41: Oil or natural gas originate from the:<br>A)

Q42: Electricity can be used to dissociate water

Q43: Often, early-formed minerals sink to the bottom

Q45: Placer ore deposits form:<br>A) whenever metal-bearing solutions

Q46: _ is formed as a residual deposit

Q47: Most of the world's iron is mined

Q48: Energy sources, such as sunlight and wind,

Q49: Salts (such as halite) that are left