Energy that drives the water cycle comes from

• the sun

• ocean waves

• inside Earth

• electricity

Producers, consumers, and decomposers are all necessary for a healthy ecosystem

• TRUE

• FALSE

Wolves and white-tailed deer are a classic ________________. What type of relationship?

• mutualism

• predator/prey

• commensalism

Can animals and plants directly absorb nitrogen from the atmosphere, is this statement true or false

• False

• True

What is the main reservoir of nitrogen?

• Water bodies

• Plants

• Atmosphere

• Soil

fixation is the process of

• conversion of N2 to forms that can be used to synthesize inorganic nitrogen compounds

• conversion of Co2 to forms that can be used to synthesize organic carbonic compounds

• conversion of N2 to forms that can be used to synthesize organic nitrogen compounds

• conversion of H2O to forms that can be used to synthesize organic aqueous compounds

how is Nitrogen fixed naturally ?

• Volcanic activity

• Lighting

• Greenhouse gases

• bacteria

• Fungs

Some plants contain nitrogen in there _________.

• Leaves

• Steam

• Flower

• Roots

why do animals and plants need nitrogen?

• it helps to synthesize proteins

• it helps to synthesize lipids

• it helps to synthesize water

• it helps to synthesize glucose

What is lable A

• Gas

• Nitrogen in the Atmosphere

• Clouds

• Carbon dioxide in the atmosphere