Question

section 25.2 alternative energy resources, continued
in your textbook, read about alternative forms of energy.
use each of the terms below just once to complete the following statements.
photovoltaic cell kinetic energy geothermal energy ethanol
biodiesel nuclear fission hydroelectric power

1. transparent wafers of silicon in a(n) ____________ convert solar energy

into electrical energy.

1. energy known as ____________ is generated by harnessing the power of

falling water.

1. the ____________ in ocean waves, which are created primarily by the

wind, can be used to generate electricity.

1. burned in gasoline engines, the fuel ____________ is a mixture of

ethanol and gasoline.

1. obtained by decomposing organic wastes, ____________ is composed of

a mixture of gases such as methane and carbon dioxide.

1. the energy known as ____________ is contained in water and steam

heated by earths internal heat.

1. in the process of ____________, atomic particles are given off as

radioactive decay.

Explanation:

Question 22

Photovoltaic cells are made of silicon wafers and convert solar energy to electrical energy.

Hydroelectric power is generated by using the energy from falling or flowing water to turn turbines.

Ocean waves have kinetic energy (energy of motion) which can be harnessed for electricity generation.

Answer:

photovoltaic cell

Question 23