Global Systems Revision

This sphere is the life-support system for Earth and includes the radiant energy of the sun.

• Hydrosphere

• Biosphere

• Atmosphere

• Geosphere

Answer explanation

The biosphere is the life-support system for Earth, encompassing the radiant energy of the sun. It is responsible for supporting all living organisms and maintaining the delicate balance of ecosystems. This answer highlights the correct choice without mentioning the option number. The question is about the life-support system for Earth, not a query.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Water evaporating from the surface of a lake moves from the...

• Atmosphere to the geosphere 

• Geosphere to the hydrosphere 

• Hydrosphere to the atmosphere 

• Atmosphere to the hydrosphere 

Answer explanation

Water evaporating from the surface of a lake moves from the hydrosphere to the atmosphere. This process occurs when liquid water changes into water vapor due to heat energy from the sun. The water molecules gain enough energy to break free from the liquid and become a gas. As a result, the water vapor rises into the atmosphere, where it can condense and form clouds or participate in other atmospheric processes. This movement of water from the hydrosphere to the atmosphere is known as evaporation.

Tags

NGSS.MS-ESS2-4

When dead plants decompose and nitrogen is returned to the soil, the interaction is between which two spheres? 

• The biosphere and atmosphere 

• The atmosphere and geosphere 

• The geosphere and atmosphere 

• The biosphere and geosphere 

Answer explanation

When dead plants decompose, nitrogen is returned to the soil through the interaction between the biosphere and geosphere. This interaction occurs as the decomposed plants release nitrogen into the soil, which is then absorbed by the geosphere. The biosphere, which includes all living organisms, plays a crucial role in this process by providing the organic matter necessary for decomposition. The geosphere, on the other hand, acts as the reservoir for nitrogen, storing and cycling it back into the soil for future use by plants.

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

When carbon dioxide dissolves from the air into the ocean- the interaction is between...

• The atmosphere and geosphere 

• The atmosphere and hydrosphere 

• The atmosphere and biosphere 

• The atmosphere and atmosphere 

Answer explanation

When carbon dioxide dissolves from the air into the ocean, the interaction occurs between the atmosphere and hydrosphere. This is because carbon dioxide from the air is absorbed by the ocean, which is part of the hydrosphere. The atmosphere and hydrosphere are the two components involved in this process. The other options, such as the atmosphere and geosphere, atmosphere and biosphere, and atmosphere and atmosphere, are not correct choices for this interaction.

Oceans, rivers, lakes, and the moisture in the air are all part of which of Earth's spheres? 

• Hydrosphere 

• Biosphere 

• Atmosphere 

• Geosphere 

Answer explanation

Oceans, rivers, lakes, and the moisture in the air are all part of the Hydrosphere. The Hydrosphere encompasses all the water on Earth, including bodies of water and water vapor in the atmosphere. It plays a crucial role in the water cycle and influences weather patterns. The other options, Biosphere, Atmosphere, and Geosphere, do not specifically include water bodies and moisture. Therefore, the correct choice is the Hydrosphere.

Tags

NGSS.MS-ESS2-4

When a plants takes carbon dioxide from the air which two spheres are interacting? 

• Biosphere and atmosphere 

• Geosphere and atmosphere 

• Hydrosphere and atmosphere 

• Atmosphere and atmosphere 

Answer explanation

When a plant takes carbon dioxide from the air, the biosphere and atmosphere interact. The biosphere, which includes all living organisms, interacts with the atmosphere, which is the layer of gases surrounding the Earth. This interaction occurs as plants absorb carbon dioxide from the atmosphere during photosynthesis, converting it into oxygen and organic compounds. It is through this process that plants play a crucial role in maintaining the balance of gases in the atmosphere and supporting life on Earth.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Human activity can impact the hydrosphere through

• waste run-off from the land

• untreated sewage entering waterways

• acid rain from the atmosphere

• All of the above

Answer explanation

Human activity can impact the hydrosphere through waste run-off from the land, untreated sewage entering waterways, and acid rain from the atmosphere. These activities can introduce pollutants and harmful substances into the water, leading to pollution and degradation of aquatic ecosystems. The correct choice is 'All of the above' as it encompasses all the mentioned ways in which human activity can impact the hydrosphere. It is important to address these issues to protect and preserve our water resources.

Deforestation, salinity, pesticide use and erosion are human activities that can negatively impact the

• Hydrosphere

• Lithosphere

• Atmosphere

• Biosphere

Answer explanation

Deforestation, salinity, pesticide use and erosion are human activities that can negatively impact the Lithosphere. These activities can lead to the destruction of forests, increase in soil salinity, contamination of soil with pesticides, and erosion of the Earth's surface. The Lithosphere refers to the solid outer layer of the Earth, which includes the Earth's crust and uppermost part of the mantle. Human activities that affect the Lithosphere can have long-lasting and detrimental effects on the environment and ecosystems.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Within the Biosphere, Biota includes all of the

• Living things

• Non-living things

• Man-made things

• None of the above

Answer explanation

The Biosphere includes all living things, known as Biota. In this question, the correct choice is 'Living things.' The answer explanation highlights this choice without mentioning the option number. The question is about the components of the Biosphere, and the answer explanation provides a concise description of Biota.

Tags

NGSS.MS-LS2-3

oxygen is a gas produced by _ and used by  _ 

• plants and animals 

• photosynthesis and carbon dioxide 

• animals and plants 

• carbon dioxide and photosynthesis

Answer explanation

Oxygen is a gas produced by plants and animals. It is used by living organisms for various processes. Through the process of photosynthesis, plants produce oxygen by converting carbon dioxide and sunlight into energy. Animals, including humans, rely on oxygen for respiration. Oxygen is essential for the survival of both plants and animals, as it is involved in the production of energy and the removal of waste products. Therefore, the correct choice is 'plants and animals'.

Tags

NGSS.MS-LS1-6