1 Which of Earth's spheres consists of all living things?(1 point)

hydrosphere

atmosphere

biosphere

geosphere

2 In which of Earth's spheres does the stratosphere exist?(1 point)

hydrosphere
hydrosphere

biosphere
biosphere

atmosphere
atmosphere

geosphere

3 Which of the following correctly describes interactions among Earth’s spheres?(1 point)

They are drastically different and never interact.
They are drastically different and never interact.

They are identical and continuously interact.
They are identical and continuously interact.

They are closely related and rarely interact.
They are closely related and rarely interact.

They are closely related and continuously interact.

4 Which is an interaction between the geosphere and the biosphere that damages the atmosphere?(1 point)

dumping of pollutants into a river
dumping of pollutants into a river

overfishing of edible species
overfishing of edible species

the erosion of rock in the mountains
the erosion of rock in the mountains

the mining and burning of fossil fuels

5 What percentage of Earth's freshwater is found in lakes, rivers, and streams as surface water?(1 point)

69%

1%

30%

71%

6 Which of Earth's oceans is the largest by volume?(1 point)

Arctic
Arctic

Indian
Indian

Atlantic
Atlantic

Pacific

7 Which of the following statements is false?(1 point)

Lakes can be freshwater or saltwater.
Lakes can be freshwater or saltwater.

Only 1.2% of all of Earth's water is found in rivers, lakes, ponds, and streams.
Only 1.2% of all of Earth's water is found in rivers, lakes, ponds, and streams.

Of all of Earth's freshwater, only 1.2% is found in rivers, lakes, ponds, and streams.
Of all of Earth's freshwater, only 1.2% is found in rivers, lakes, ponds, and streams.

Estuaries are bodies of water that can contain salt

or freshwater.

1. The sphere that consists of all living things on Earth is the biosphere.

2. The stratosphere exists in the atmosphere.
3. The correct description of interactions among Earth's spheres is that they are closely related and continuously interact.
4. An interaction between the geosphere and the biosphere that damages the atmosphere is the mining and burning of fossil fuels.
5. Approximately 1% of Earth's freshwater is found in lakes, rivers, and streams as surface water.
6. The Pacific Ocean is the largest by volume.
7. The false statement is that estuaries are bodies of water that can contain salt.

1. The sphere of Earth that consists of all living things is called the biosphere. To determine the correct answer, you need to understand what the biosphere is and its relationship to the other spheres.

The biosphere includes all living organisms, such as plants, animals, and microorganisms. It encompasses the parts of Earth where life exists, including the land, water bodies like rivers and lakes, and the atmosphere where living organisms can be found. The biosphere interacts with other spheres, such as the atmosphere, hydrosphere, and geosphere.

2. The stratosphere exists in the Earth's atmosphere. To identify which sphere it belongs to, you need to know the definition of the stratosphere and the spheres of the Earth.

The stratosphere is a layer in the Earth's atmosphere located above the troposphere and below the mesosphere. It extends about 10-50 kilometers above the Earth's surface. The atmosphere includes all the gases that surround the Earth and extend into space. Therefore, the correct answer is atmosphere.

3. Interactions among Earth's spheres can be described as closely related and continuously interacting. To understand the correct answer, you need to comprehend the concept of sphere interactions.

The Earth's spheres are not separate entities but interconnected systems. They interact with each other constantly, exchanging matter and energy. The atmosphere interacts with the hydrosphere through processes like evaporation and precipitation. The biosphere depends on the geosphere for nutrients and minerals. The correct answer is that the Earth's spheres are closely related and continuously interact.

4. An interaction between the geosphere and the biosphere that damages the atmosphere is the mining and burning of fossil fuels. To identify the interaction that causes damage to the atmosphere, you need to comprehend the relationships between these spheres.

The geosphere refers to the solid parts of the Earth, including rocks, minerals, and landforms. The biosphere encompasses all living organisms. When fossil fuels, such as coal, oil, and natural gas, are extracted from the geosphere through mining and burned for energy generation, it releases harmful pollutants, including greenhouse gases, into the atmosphere. This interaction contributes to air pollution and climate change, damaging the atmosphere.

5. The percentage of Earth's freshwater found in lakes, rivers, and streams as surface water is 1%. To determine the correct answer, you need to know the distribution of freshwater on Earth.

Freshwater is a limited resource on Earth, and most of it is not readily available as surface water. The majority of freshwater is stored in ice caps, glaciers, and underground aquifers. Only a small percentage is found in lakes, rivers, and streams on the Earth's surface. The correct answer is 1%.

6. The Pacific Ocean is the largest by volume among Earth's oceans. To identify the largest ocean by volume, you need to be familiar with the characteristics of the Earth's oceans.

The Pacific Ocean, located between Asia and the Americas, is the largest of the Earth's oceans in terms of volume. It covers a vast area, including the Mariana Trench, which is the deepest part of the ocean. Therefore, the correct answer is Pacific.

7. The false statement is "Estuaries are bodies of water that can contain salt." To identify the false statement, you need to understand the definition of estuaries and the distribution of saltwater bodies.

Estuaries are bodies of water where freshwater from rivers mixes with saltwater from the ocean. They are known for their brackish water, which has varying salinity. Estuaries are important habitats for many species of plants and animals due to the mixing of nutrients and the unique environmental conditions they create. Therefore, the correct answer is that the statement is false, as estuaries do indeed contain salt.

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