Nature's Cycles Quiz - Understand the Natural Processes of the Earth

Question 1 of 33

What is the primary process through which plants convert sunlight into chemical energy?

Choose 1 answer

Respiration

Photosynthesis

Fermentation

Transpiration

Question 2 of 33

Which cycle describes the movement of water through the atmosphere, land, and oceans?

Choose 1 answer

Carbon Cycle

Nitrogen Cycle

Water Cycle

Phosphorus Cycle

Question 3 of 33

In which cycle is nitrogen converted from atmospheric N2 into compounds usable by living organisms?

Choose 1 answer

Carbon Cycle

Nitrogen Cycle

Sulfur Cycle

Water Cycle

Question 4 of 33

What is the main source of energy for the Earth's climate system?

Choose 1 answer

Geothermal Heat

Solar Radiation

Wind Energy

Tidal Energy

Question 5 of 33

Which cycle involves the movement of phosphorus through the lithosphere, hydrosphere, and biosphere?

Choose 1 answer

Phosphorus Cycle

Carbon Cycle

Nitrogen Cycle

Water Cycle

Question 6 of 33

What is the role of decomposers in the nutrient cycles?

Choose 1 answer

To convert organic matter into inorganic substances

To produce organic matter

To store energy

To absorb sunlight

Question 7 of 33

Which process is responsible for the release of oxygen into the atmosphere?

Choose 1 answer

Cellular Respiration

Photosynthesis

Decomposition

Eutrophication

Question 8 of 33

What is the main process by which carbon dioxide is removed from the atmosphere and used by plants?

Choose 1 answer

Respiration

Photosynthesis

Combustion

Decomposition

Question 9 of 33

How do plants primarily take up nitrogen from the soil?

Choose 1 answer

Through root hairs

Through stomata

Through xylem

Through phloem

Question 10 of 33

Which of the following processes is part of the carbon cycle?

Choose 1 answer

Nitrogen Fixation

Photosynthesis

Phosphorylation

Nitrogen Decomposition

Question 11 of 33

In which cycle is sulfur primarily released from volcanic eruptions and rock weathering?

Choose 1 answer

Nitrogen Cycle

Water Cycle

Sulfur Cycle

Carbon Cycle

Question 12 of 33

Which process is responsible for converting atmospheric carbon dioxide into glucose in plants?

Choose 1 answer

Respiration

Photosynthesis

Fermentation

Transpiration

Question 13 of 33

What is the term for the natural process of nutrients moving from the soil into plants and then into animals and back to the soil?

Choose 1 answer

Nutrient Recycling

Ecosystem Dynamics

Nutrient Cycling

Energy Flow

Question 14 of 33

What is the main role of transpiration in the water cycle?

Choose 1 answer

To release carbon dioxide

To absorb nutrients

To release water vapor into the atmosphere

To facilitate photosynthesis

Question 15 of 33

Which of the following is NOT a part of the nitrogen cycle?

Choose 1 answer

Nitrification

Denitrification

Eutrophication

Ammonification

Question 16 of 33

In which part of the carbon cycle is carbon stored for long periods?

Choose 1 answer

Atmosphere

Ocean

Fossil Fuels

Plants

Question 17 of 33

What is the primary function of the carbon cycle?

Choose 1 answer

To regulate temperature

To recycle nutrients

To cycle water

To balance atmospheric gases

Question 18 of 33

How is phosphorus typically introduced into ecosystems?

Choose 1 answer

Through atmospheric deposition

Through ocean currents

Through soil weathering

Through biological fixation

Question 19 of 33

What is the term for the process by which bacteria convert atmospheric nitrogen into ammonia?

Choose 1 answer

Nitrification

Nitrogen Fixation

Denitrification

Ammonification

Question 20 of 33

Which process is part of the phosphorus cycle but not part of the nitrogen cycle?

Choose 1 answer

Biological Fixation

Soil Weathering

Nitrification

Denitrification

Question 21 of 33

What is the term for the release of nitrogen gas back into the atmosphere?

Choose 1 answer

Denitrification

Nitrification

Nitrogen Fixation

Ammonification

Question 22 of 33

Which cycle involves the movement of sulfur through the atmosphere, lithosphere, and biosphere?

Choose 1 answer

Carbon Cycle

Sulfur Cycle

Nitrogen Cycle

Phosphorus Cycle

Question 23 of 33

What is the role of oceans in the carbon cycle?

Choose 1 answer

To absorb carbon dioxide

To release nitrogen

To produce oxygen

To fix nitrogen

Question 24 of 33

Which of the following is a major reservoir for nitrogen in the biosphere?

Choose 1 answer

The Atmosphere

The Oceans

The Lithosphere

The Hydrosphere

Question 25 of 33

What process in the carbon cycle involves the conversion of carbon-containing molecules into energy?

Choose 1 answer

Respiration

Photosynthesis

Decomposition

Combustion

Question 26 of 33

Which cycle involves the release of carbon dioxide from respiration and combustion?

Choose 1 answer

Water Cycle

Phosphorus Cycle

Nitrogen Cycle

Carbon Cycle

Question 27 of 33

What is the main way nitrogen enters the food web?

Choose 1 answer

Through nitrogen fixation

Through atmospheric deposition

Through photosynthesis

Through ocean currents

Question 28 of 33

What is the term for the movement of water from the Earth's surface to the atmosphere?

Choose 1 answer

Precipitation

Evaporation

Condensation

Transpiration

Question 29 of 33

Which process is a part of the phosphorus cycle but not of the nitrogen cycle?

Choose 1 answer

Ammonification

Nitrification

Sedimentation

Denitrification

Question 30 of 33

What is the primary source of phosphorus in agricultural fertilizers?

Choose 1 answer

Atmospheric Nitrogen

Rock Phosphate

Animal Manure

Plant Residue

Question 31 of 33

Which of the following processes is not involved in the nitrogen cycle?

Choose 1 answer

Eutrophication

Nitrogen Fixation

Nitrification

Denitrification

Question 32 of 33

In which part of the water cycle does condensation occur?

Choose 1 answer

Atmosphere

Groundwater

Oceans

Surface Water

Question 33 of 33

Which process describes the breakdown of organic matter into simpler substances?

Choose 1 answer

Decomposition

Respiration

Photosynthesis

Nitrogen Fixation

Nature's Cycles : Biology

Practice Test

Question 1 of 33

Choose 1 answer

Question 2 of 33

Choose 1 answer

Question 3 of 33

Choose 1 answer

Question 4 of 33

Choose 1 answer

Question 5 of 33

Choose 1 answer

Question 6 of 33

Choose 1 answer

Question 7 of 33

Choose 1 answer

Question 8 of 33

Choose 1 answer

Question 9 of 33

Choose 1 answer

Question 10 of 33

Choose 1 answer

Question 11 of 33

Choose 1 answer

Question 12 of 33

Choose 1 answer

Question 13 of 33

Choose 1 answer

Question 14 of 33

Choose 1 answer

Question 15 of 33

Choose 1 answer

Question 16 of 33

Choose 1 answer

Question 17 of 33

Choose 1 answer

Question 18 of 33

Choose 1 answer

Question 19 of 33

Choose 1 answer

Question 20 of 33

Choose 1 answer

Question 21 of 33

Choose 1 answer

Question 22 of 33

Choose 1 answer

Question 23 of 33

Choose 1 answer

Question 24 of 33

Choose 1 answer

Question 25 of 33

Choose 1 answer

Question 26 of 33

Choose 1 answer

Question 27 of 33

Choose 1 answer

Question 28 of 33

Choose 1 answer

Question 29 of 33

Choose 1 answer

Question 30 of 33

Choose 1 answer

Question 31 of 33

Choose 1 answer

Question 32 of 33

Choose 1 answer

Question 33 of 33

Choose 1 answer

Quick Link

Query

Follow Us