The Main difference between terrestrial planets and gas giants is
the way they are formed
the shape of their obits
the level of their density***
the plane in which they lie
Where is most of Earth's freshwater located
in lakes
in rivers
in oceans
in glaciers***
agree
The main difference between terrestrial planets and gas giants is the level of their density. Terrestrial planets, such as Earth, are composed primarily of rocky or metallic materials and have a higher density compared to gas giants. Gas giants, on the other hand, have a much lower density due to their predominantly gaseous composition.
Most of Earth's freshwater is located in glaciers. Glaciers store about 68.7% of the Earth's freshwater, which is frozen in the form of ice.
To answer the first question about the main difference between terrestrial planets and gas giants, we need to analyze the given options:
- The way they are formed: Terrestrial planets and gas giants have different formation processes. Terrestrial planets are formed through accretion, where solid materials come together to form a rocky planet. Gas giants, on the other hand, are primarily formed by capturing large amounts of gas, like hydrogen and helium, from the protoplanetary disk during their formation.
- The shape of their orbits: The shape of a planet's orbit is not a defining characteristic that distinguishes terrestrial planets from gas giants. Both types of planets can have a wide range of orbital shapes, including circular or elliptical orbits.
- The level of their density: This is the correct answer. The main difference between terrestrial planets and gas giants lies in their density. Terrestrial planets, such as Earth, have a higher density due to their rocky composition. Gas giants, like Jupiter and Saturn, have a much lower density because they are primarily composed of gas.
- The plane in which they lie: The plane in which planets lie is called the ecliptic plane and is defined by the plane of Earth's orbit around the Sun. This plane is not a distinguishing characteristic between terrestrial planets and gas giants.
Now moving on to the second question about the location of most of Earth's freshwater:
- In lakes: Lakes do hold a significant amount of freshwater, but they are not the primary location where most of Earth's freshwater is stored.
- In rivers: While rivers do contain freshwater, they are continually flowing, transporting water from various sources to other bodies of water. They are not the main storage location for freshwater.
- In oceans: Oceans make up about 97% of Earth's water, but they are composed of saltwater, not freshwater.
- In glaciers: This is the correct answer. The majority of Earth's freshwater is stored in glaciers, which include ice sheets, ice caps, and glaciers in mountainous regions. These frozen bodies of water hold a significant amount of the planet's freshwater resources.
To summarize, the correct answers are:
- The main difference between terrestrial planets and gas giants is the level of their density.
- Most of Earth's freshwater is located in glaciers.