Question

What colour does clouds appear when the earth is not surrounded by layers of atmosphere?
A. White
B. Red
C. Blue
D. Black

Answer 1

A cloud is a visible mass of minute liquid droplets, ice crystals, or other particles floating in the atmosphere of a planetary body or comparable space, according to meteorology. The droplets and crystals might be made of water or a variety of different substances. On Earth, clouds develop when the air is chilled to its dew point, or when it receives enough moisture (typically in the form of water vapour) from a neighbouring source to raise the dew point to the ambient temperature.

Complete step-by-step solution:
Clouds are white because the Sun's light is white. Light interacts with water droplets as it passes through a cloud, which are significantly larger than the atmospheric particles that exist in the sky. Blue light is scattered away more strongly than other colours when sunlight hits an air particle in the sky, creating the impression that the sky is blue. However, sunlight is dispersed by considerably bigger water droplets in a cloud. These disperse all colours fairly equally, allowing the sunshine to remain white and the clouds to appear white against the blue sky. Sunlight is a type of wave that belongs to the electromagnetic spectrum. When the spectrum is broken up and stretched out like a rainbow, we can view the whole spectrum. Other types of waves, ranging from extremely short x-rays and gamma rays to extremely long radio waves, share the spectrum. Each visible colour has its own wavelength, with blue light having the shortest at 400 nanometres and red light having the longest at 700 nanometres. Smaller particles scatter shorter wavelengths more efficiently, such as those in the atmosphere that are invisible to human sight and cause the sky to seem blue. Larger particles, such as water droplets in a cloud, scatter all wavelengths with a similar efficiency. Clouds are frequently grey due to the same dispersion that causes them to be white. When light is dispersed in a cloud, it is generally reflected upwards or out to the edges, making the cloud's tops and sides whiter than the cloud's base, which gets less light. Rain clouds are more noticeable because the cloud droplets are larger, scattering more light. As a result, even less sunlight reaches the cloud's bottom, giving rain clouds their menacing aspect. Cloud tops are constantly white because they have a steady supply of white light! Hence option d is correct

Note: Tropospheric clouds have the potential to influence global climate change. They may deflect incoming solar rays, resulting in a cooling impact where and when these clouds form, or they may trap longer wave radiation that reflects back up from the Earth's surface, resulting in a warming effect. The major variables that impact the local heating or cooling of Earth and the atmosphere are the height, shape, and thickness of clouds. Clouds that develop above the troposphere are too few and too thin to have any impact on global warming. The major source of uncertainty in climate sensitivity is clouds.