<u>Answer:
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It would be more accurate to calculate using only the arable land because only the arable can be surely said to be suitable for the cultivation of crops.
<u>Explanation:
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- It is preferable to calculate the amount of agricultural yield that can be obtained from a specific area by taking into consideration only the land that is arable because the land other than arable land cannot guarantee the expected produce as it is not deemed to be suitable for farming.
- Arable land guarantees the expected produce owing to the fertility of the soil and the nutrients present in it that are crucial for the crop to thrive.
Answer:
b. crystallization above ground and crystallization below ground
Explanation:
The magma undergoes transition when it moves from the mantle layer toward the lithosphere. The reason for this is that the pressure and temperature drastically change. With other words, the magma starts to cool off as it comes toward the surface of the Earth. As the magma cools off it starts to crystallize, resulting in the formation of igneous rocks. When the magma comes out on the surface, known as lava in those cases, it cools of very quickly because the temperature and pressure are much lower. Because the cooling off occurs very quickly, the magma crystallizes quickly, so the crystals are small, and it forms extrusive igneous rocks. When the magma cools off underground, but still relatively close to the surface, the temperature and pressure are slightly bigger than those on the surface. Because of this, the magma cools off slower, thus it crystallizes slower. This results in the formation of larger crystals, and intrusive igneous rocks.
Basketry, i’m sorry if it’s wrong
It is using crops and plants origins to create fuel for vehicles.
Electromagntic wave, such as an X-ray.
Explanation:
- Electromagnetic wave does not require any medium to travel. These waves propagate outwards from the source.
- They can travel even through the vacuum of outer space.
- The major source is the sun which emits radiation in the form of the Electromagnetic spectrum.
- These waves travel through oscillating electrical and magnetic fields generated by the oscillating charged particles.
- These waves oscillate in the perpendicular direction of planes concerning each other and are in form.
- Electromagnetic waves travel at speed of light.
