Ch. 15 & 16

Question 1

solid, combustible mixture of organic compounds with 30-98% carbon by weight, mixed with various amounts of water and small amounts of oxygen, sulfur, and nitrogen

Answer 1

coal

Question 2

natural gas under pressure which remains clear, odorless, and non-corrosive

Answer 2

Compressed Natural Gas (CNG)

Question 3

gooey liquid consisting of mostly hydrocarbon compounds and small amounts of compounds containing oxygen sulfur and nitrogen

Answer 3

crude oil

Question 4

products pf partial or complete decomposition of plants and animals; occurs as crude oil, coal, natural gas, or heavy oil as a result of exposure to hear and pressure in the earth’s crust over millions of years

Answer 4

fossil fuels

Question 5

heat transferred from earth’s underground concentrations of dry, wet steam, or hot water trapped in fractured or porous rock

Answer 5

geothermal energy

Question 6

an electrochemical cell in which the energy of a reaction between a fuel such as liquid hydrogen, and an oxidant such as liquid oxygen is converted directly and continuously into electrical energy

Answer 6

hydroelectric fuel cells

Question 7

a colorless, odorless flammable gas that is the main constituent of natural gas

Answer 7

methane

Question 8

a crystalline structure consisting of ice that contains interstitial methane

Answer 8

methane hydrates

Question 9

underground deposits of gases consisting of methane gas and small amounts of heavier gaseous hydrocarbon compounds

Answer 9

natural gas

Question 10

deposit of a mixture of clay, sand, water, and varying amounts of tar like heavy oil known as bitumen

Answer 10

oil sand/tar sand

Question 11

part of a metal-yielding material that can be economically extracted from a mineral

Answer 11

ore

Question 12

chemicals obtained by refining crude oil; used as raw materials

Answer 12

petrochemicals

Question 13

device that converts radiant solar energy directly into electrical energy

Answer 13

photovoltaic (PV) cells/solar cells

Question 14

slow-flowing, dark brown, heavy oil obtained when kerogen in shale oil is vaporized at high temperatures and then condensed

Answer 14

Shale oil

Question 15

direct radiant energy from the sun and a number of indirect forms of energy produced by the direct input of such radiant energy

Answer 15

solar

Question 16

synthetic gaseous and liquid fuels produced from solid coal sources other than natural gas or crude oil

Answer 16

synfuel

Question 17

energy obtained by harnessing the energy of the wind

Answer 17

Wind power

Question 18

gases or liquid fuels from plant material

Answer 18

biofuels