Unit Test — Unit test Answers

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Which organisms release carbon dioxide as waste?

consumers only

consumers and decomposers

producers and decomposers

producers only

Sublimation is the opposite of deposition just as evaporation is the opposite of

fusion

transpiration

freezing

condensation

Sydney drew a flow chart to illustrate the nitrogen cycle.

X: Producers undergo photosynthesis.Y: Nitrogen compounds are released into the air.

X: Nitrogen compounds are released into the air.Y: Producers undergo photosynthesis.

X: Free nitrogen is in the atmosphere.Y: Producers absorb nitrogen compounds through their roots.

X: Producers absorb nitrogen compounds through their roots.Y: Free nitrogen is in the atmosphere.

Hamid made this table to organize his notes on the properties of acids and bases.Which property is in the wrong column?

taste sour

react with carbonates

conduct electric current

form hydrogen gas with metals

Which best explains why a thick tropical forest filled with large plants typically has a lot of water vapor in the air?

The plants undergo transpiration.

The plants undergo condensation.

The plants prevent water from evaporating.

The plants prevent water from becoming runoff.

Sublimation is the opposite of deposition just as evaporation is the opposite of

fusion

transpiration

freezing

condensation

Which solution has the greatest number of hydrogen ions?

blood, pH = 7.2

lemon juice, pH = 2

soda, pH = 3.5

bleach, pH = 13.5

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