Heat Is On Question Preview (ID: 61476)

a) a substance other than the primary substance that is left over

b) a substance that is created and used

c) the primary substance made

d) these products are never harmful

a) planting more trees

b) making improvements to a forest

c) the action of clearing forest areas

d) this has nothing to do with forests

a) an amount of a polluting substance that is produced and released into the air

b) completing a mission

c) going on a mission

d) the act of observing a phenomenon in order to collect data and identify patterns

a) the framework of a building

b) a framework of foundational services, facilities, or systems that sustain a society

c) a usable stock or supply

d) an adjective that describes something related to a city

a) freshwater

b) water used by humans

c) water contaminated by human use

d) groundwater

a) the introduction of harmful substances to a natural environment

b) monitoring air quality

c) greenhouse gases

d) photosynthesis

a) can be used up and will never be replaced

b) to use more than once

c) unlikely to run out, capable of being replaced or restored as quickly as it is used

d) fossil fuels

a) a relationship where one variable directly affects another

b) a relationship that exists between two or more variables

c) a relationship where one variable does not affect the other

d) Coincidence

a) an increase in the volume of a substance caused by a rise in temperature

b) the process in which the layer of gases surrounding the Earth trap some of the suns heat

c) a major natural event, such as a flood or earthquake, that has a negative impact on the planet

d)

a) a substance other than the primary substance that is left over

b) a substance that is created and used

c) the primary substance made

d) a limit or restriction on a design