Biogeochemical Cycles

1.

Multiple Choice

1 min

1 pt

A biogeochemical cycle explains:

The formation of stars and planets.

why certain animals are known as keystone animals.

the flow of chemical elements between living organisms and the environment.

2.

Multiple Choice

30 sec

1 pt

Biogeochemical processes do ALL of the following EXCEPT for:

Regulate nutrients

Influence climate stability

Influence the metabolism of mammals

3.

Multiple Choice

30 sec

1 pt

________________ is the process where liquid water is heated by the sun and is changed to water vapor.

Condensation

Evapotranspiration

Evaporation

4.

Multiple Choice

30 sec

1 pt

Replenishing of the water table is known as:

Runoff

Usage

Recharge

5.

Multiple Choice

30 sec

1 pt

When a plant or animal removes water from the water table it is known as:

Runoff

Usage

Recharge

6.

Multiple Choice

30 sec

1 pt

Water does not get absorbed by the ground and flows over an impermeable surface is known as:

runoff

usage

recharge

7.

Multiple Choice

30 sec

1 pt

Humans alter the water cycle by ALL of the following EXCEPT:

contributing to climate change

polluting surface and ground water

releasing large amounts of absorbent materials into the oceans

8.

Multiple Choice

30 sec

1 pt

Who stated energy/matter cannot be created nor destroyed, only changed from one form to another is the 1st law of thermodynamics.

Einstein

Ptolomy

Aristotle

9.

Multiple Choice

30 sec

1 pt

_____________ is known as the building block of life.

sulfur

carbon

water

10.

Multiple Choice

30 sec

1 pt

Carbon enters the atmosphere in the carbon cycle as:

Sucrose

Nitrites

Carbon Dioxide

11.

Multiple Choice

1 min

1 pt

The products of respiration are:

O2 + Food

CO2 + H2O + Energy

CO2 + H2O + Sunlight

12.

Multiple Choice

30 sec

1 pt

Carbon enters the atmosphere by ALL of the following EXCEPT:

through photosynthesis

released by volcanic eruptions

released by burning wood and fossil fuels

13.

Multiple Choice

1 min

1 pt

The reactants for photosynthesis are:

O2

C6H12O6 + O2

CO2 + H2O + Sunlight

14.

Multiple Choice

30 sec

1 pt

What is the energy source that drives Earth's plates?

Sun

Tidal

Geothermal

15.

Multiple Choice

30 sec

1 pt

Which of the gases below contributes most to the greenhouse effect?

NO2

CFCs

CO2

16.

Multiple Choice

30 sec

1 pt

________________ is important element required by living things because it is required for amino acids.

Nitrogen

Phosphorus

Sulfur

17.

Multiple Choice

30 sec

1 pt

Nitrogen fixing bacteria

contaminate groundwater

change nitrogen into nitrogen compounds plants can use

are found on the roots of all plants

18.

Multiple Choice

30 sec

1 pt

The process by which a body of water acquires a high concentration of nutrients is known as:

Nutrification

Eurtrophication

Nitrogenification

19.

Multiple Choice

30 sec

1 pt

Humans alter the nitrogen cycle by ALL of the following except:

Adding gases that contribute to acid rain

volcanic activity

contaminating ground water from nitrate ion in inorganic fertilizers

20.

Multiple Choice

30 sec

1 pt

Effects of increased nitrogen include ALL of the following EXCEPT:

increases global warming

increases rate of cutting down forests

increases acidity of rivers and lakes

21.

Multiple Choice

30 sec

1 pt

The most abundant gas in the atmosphere is:

Nitrogen

Oxygen

Carbon Dioxide

Water Vapor

22.

Multiple Choice

30 sec

1 pt

The percentage of energy that is reflected off the Earth without being changed is called

Albedo

Eutrophication

Nitrification

23.

Multiple Choice

30 sec

1 pt

Which of the following is the chemical formula for Methane?

CH4

NO2

NH3

24.

Multiple Choice

30 sec

1 pt

Which of the following is the chemical formula for Nitrite?

H2O

NO2

NO3

25.

Multiple Choice

30 sec

1 pt

What is the #1 source of useable fresh water?

Oceans

Icecaps & Glaciers

Groundwater

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