If there was no water above the earth, would it still be blue?

If there were no water on the earth, it would not be blue. Because the blue areas are all water.

No, the reason why the earth is blue is because 71% of the earth's surface is ocean, so it looks blue. Without water, it is not blue.

If there is no water on Earth, then the color of the Earth will be the same as Mars, not blue. If there is no water on the earth, then all living things cannot survive and will all die, so there must be water on the earth.

Question 1: Why does the sky be blue when people on earth look at it This is because sunlight is composed of seven colors: red, orange, yellow, green, cyan, blue, and violet. The wavelengths of light of the seven colors of this jujube worm are different.

Dust and other particles in the atmosphere scatter blue light more than other photons with longer wavelengths, so the sky appears blue.

Question 2: There are many rays of light in the universe, why is the earth blue and the universe black No matter what light source produces visible light, if it wants to propagate, it must have a magnetic field as a medium (**), and the cosmic space is composed of magnetic fields, so sunlight can spread throughout the solar system, and silver heart light can spread throughout the Milky Way. But light is like electricity, electricity in a superconductor, because there is no resistance, no voltage drop, no work, no heat.

In the same way, light is in space without air, there is no photoresistance, there is no light pressure drop, it cannot do work, it cannot emit light, so space is dark. And only in the air, the light will do work in the load similar to electricity, that is, the light will shine in the air. The silver heart is larger than the sun, and the temperature produced is higher than that of the sun, causing the silver core to produce a cold blue light.

Similarly, blue is similar to superconductivity in space, and cannot do work, and the stoolless burial method emits blue, while in the atmosphere it is similar to the load electricity will do work, then blue will do work in the atmosphere, so the earth is blue, and the universe is black.

Question 3: Why does Brother Jian say that the earth is a blue planet This is because the surface of the earth is covered by more than 70% of the blue water, so the earth is very beautiful when viewed from outer space, so the earth is called the blue planet.

Question 4: Why is most of the Earth blue because the Earth's seawater covers more than 70 percent of the area.

70% of the planet is covered by seawater, but the water itself is not blue. The reason why it is blue is that when the sun shines on the surface of the sea, it is affected by the wavelength of the light, and only the two colors of cyan and green light can penetrate the sea water and scatter freely in the seawater, which also causes us to appear a blue color when we look down on the sea surface in the sky, all thanks to the sun. The land, on the other hand, is made up of green and brown, and together they make up the color of the beautiful earth we live in.

Well, that's all there is to know about why the Earth is blue.

Why is the Earth blue?

The blue color of the Earth is due to the scattering of sunlight by the Earth's atmosphere. Blue light has a more specialized wavelength in sunlight.

It is short and has poor penetration, so the genus will scatter in the atmosphere and enter the human eye. Red light, which has a longer wavelength, can directly penetrate the atmosphere and is absorbed by the ground, and rarely enters the human eye.

In the morning and at dusk, the sunlight enters obliquely, and the path through the atmosphere is long, and the red light cannot penetrate the atmosphere directly, but is scattered, so we see that the sun is red. Even the sky near the sun is red.

There are two reasons for this, the first of which is because of the large area of ocean cover. Because light with long wavelengths is more easily absorbed by water, in visible light, water is blue, but not purple because violet light is much less than blue light in the visible spectrum.

The second reason is the scattering of light by the atmosphere. When light hits very small particles, there is rayleigh scattering, which is inversely proportional to the wavelength of the light. Therefore, the scattering of blue-violet light is stronger.

The second reason is why when you look at the Earth from outer space, the atmosphere appears blue.

Because 90% of the earth is green by anyone, it is blue, and there are many blue big creatures on the earth, too.