Answer: D. both A and B
Explanation:
Earth is the only planet that is capable of supporting life as we know it due to the presence of temperature, oxygen, an atmosphere and energy.
All the above contribute in the following ways;
- Atmosphere - The atmosphere is sort of like a protective barrier around earth. It destroys a lot of foreign objects that fall on earth and traps the sun's rays such that we keep us adequately warm. It also contains both oxygen and carbon dioxide which living things rely on.
- Energy - The presence of energy sources on Earth enables us to be able to survive. Energy sources like fire, water, and solar enable us to do things such as cooking and electricity generation, that ensure our survival.
- Nutrients - The nutrients available on Earth ensure that living things can grow and survive.
- Temperature - A very important factor, Earth has the right amount of temperature necessary for the proliferation of life. It is not too cold that living things are unable to metabolize food and freeze and is not too hot that life cannot survive.
It is a convection current shown in an ongoing cycle creating new earth and recycling old
Answer:
Bulk density of the given soil sample = <u>1.3 g/cm³</u>
Explanation:
The bulk density of a soil is equal to the dry weight of the soil divided by the total volume of the soil. It is also known as the dry bulk density.
The formula of dry bulk density is:
Bulk density = Dry weight of the soil (g) ÷ volume of soil (cm³)
Given: dry weight of soil = 130 g, volume of soil = 100 cm³
Therefore,
Bulk density = Dry weight of the soil (g) ÷ volume of soil (cm³) = 130 g ÷ 100 cm³ = 1.3 g/cm³.
<u>Therefore, Bulk density of the given soil sample = 1.3 g/cm³</u>
The Saros cycle is 18 years 11 1/3 days. Because of this 1/3 day means that the earth is 8 hours further along in its rotation than it was at the start of that cycle. the area previously facing the sun is now facing away.
<h3>Why don't total solar eclipses occur in the same places?</h3>
- When the Moon's shadow falls on the Earth, it causes a solar eclipse. They do not occur every month because the Earth's orbit around the sun does not coincide with the Moon's orbit around the Earth.
- The total solar eclipse of March 20, 2015 is part of the Saros 120 eclipse family. A Saros series is a collection of eclipses that are separated by 6,585.3 days from the next (or previous) eclipse.
- This equates to 18 years, 10 days, and 8 hours. The Saros period is unique in that any two eclipses separated by one Saros are very similar.
- The moon is nearly at the same position in relation to its node (the point at which the moon's orbit intersects Earth's orbit) and is also nearly the same distance from Earth. Furthermore, the eclipse occurs at nearly the same time of year.
- Three of the moon's orbital periods repeat after one Saros period of 18 years 10.3 days, resulting in these coincidences. The three periods are as follows:
To learn more about solar eclipses refer to
brainly.com/question/98761
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