The standard form is
7.087x10^6
About 71% of the earth's surface is covered by water. (C)
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Answer:
Pre-dusk, early to medium twilight phases allow outdoor activities without using artificial lighting
Explanation:
Civil twilight is a term, and we describe it as "the time after sunset and before sunrise ends or begins when the sun seems to be about 6 degrees underneath the horizon during which the light for normal outdoor occupations is adequate on clear days.
Nautical twilight is the second stage of twilight. By this time, both horizon and the brighter stars are easily visible, making navigation around sea possible.
Astronomical twilight occurs whenever the Sun is under the horizon between 12° and 18°
Pre-dusk, early to medium twilight phases allow outdoor activities without using artificial lighting
According to the image, it can be inferred that the economic development of that place did not take into account natural erosion (option A).
<h3>What is natural erosion?</h3>
Erosion is a term that refers to the wear of soil and rocks as a result of different physical and chemical processes on the Earth's surface. In general, erosion implies movement, transport of material, in contrast to the alteration and disintegration of rocks or soil.
According to the above, it can be inferred that the construction of the image did not take into account the erosion of the place because it shows that the foundations of the house are on the land surface that is towards the beach.
From the above, it can be inferred that erosion will degrade the soil in this area as a result of the impact of the waves and the constant wind. This puts the structure at risk because it will lose support and may collapse.
Learn more about erosion in: brainly.com/question/3852201
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The second one is push factors, the first one is pull factor, the fourth one is forced migration, and the third one is chain migration, hope this helps.
