Answer:
The outer planets — Jupiter, Saturn, Uranus, and Neptune are made up of: <em><u> </u></em><em><u>h</u></em><em><u>ydrogen</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>helium</u></em><em><u> </u></em>
Answer:
They receive less radiation from the sun, due to their orientation relative to incoming sunlight.
Explanation:
Earth has multiple different climate zones, roughly arranged by latitude. The difference in climates comes because of multiple factors, but the most important one is the Sun and the sunlight of it. Because Earth has a rounded shape, different parts of it receive different amounts of sunlight.
If we compare the tropical and polar regions as two contrasting regions, we can see huge differences. The tropical regions are warm or hot all year round, while the polar regions are very cold throughout all of the year. The tropical regions though receive sunlight at a much more direct angle, thus the sunlight is much more concentrated and heats up the region. The polar regions receive sunlight at a very low angle, so they are dispersing over a very wide area so they can not warm up the region.
As Reforestation is the Natural way of Restoring the Forests which existed once and have been Depleted because of Deforestation, It can be Called as a Positive Initiative because :
It replants Trees on lands destroyed by farming, manufacturing, logging and city growth.
Option (B) is the Best Answer
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It is a terrestrial planet.
It was formed from gas and dust.
It was formed in a debris disk from colliding planetesimals.
Explanation:
The earth is one of the four terrestrial planets that orbits the sun and forms a significant part of the solar system.
The solar system is made up of the planets moving round the sun which is the star. The satellites moves round the planets. Also, there are other interplanetary bodies that moves in the solar system.
- According to the solar nebular theory, the earth was formed from a gas of intersellar dust which was rotating.
- Intense pressure and temperature led to the collapse of the core under gravitational pull. The core formed the sun.
- The debris disk accreted to form several planetesimmals from which the earth was derived.
- Most of the solid and denser materials were pulled in closely to sun and they are rock balls called terrestrial planets.
- The outer parts are gas giants.
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