CFC's
More ultraviolet waves reach Earth today due to human activities such as industrialization and the thinning of the ozone layer. This allows more UV radiation to penetrate the atmosphere and reach the Earth's surface, leading to increased exposure to harmful UV rays.
There are three main types of ultraviolet (UV) rays: UVA, UVB, and UVC. UVA and UVB are the ones that reach the Earth's surface, while UVC is mostly absorbed by the Earth's atmosphere.
Electromagnetic radiation from the sun, most in the form of visible light.
Ultraviolet rays from the sun are able to reach Earth's surface because they have shorter wavelengths compared to visible light and can penetrate the atmosphere. While some UV radiation is absorbed or scattered by the atmosphere, enough reaches the surface to cause effects such as sunburn and skin damage.
Sunlight is composed of three types of ultraviolet (UV) light: UVA, UVB, and UVC. UVA accounts for about 95% of the UV light that reaches the Earth's surface, while UVB makes up the remaining 5%. UVC is absorbed by the Earth's atmosphere and does not reach the surface.
Apparently it does, since we're able to see the sun and get around without flashlights in the daytime.
Most of the visible light and some of the ultraviolet and infrared radiation from the sun pass through the atmosphere and reach the Earth's surface. Other forms of radiation, such as gamma rays and X-rays, are mostly absorbed by the atmosphere and do not reach the surface.
The types of radiation that can reach the surface of Earth include visible light, ultraviolet (UV) radiation, and some infrared radiation from the sun. Additionally, cosmic rays, which are high-energy particles from space, can also penetrate the Earth's atmosphere, although they are mostly absorbed. However, most harmful forms of radiation, such as gamma rays and X-rays, are absorbed by the atmosphere and do not reach the surface.
Extreme ultraviolet and X-rays are mostly absorbed by the Earth's atmosphere before reaching the surface. This absorption helps protect living organisms from the harmful effects of these high-energy radiations.
Ozone layer consists of molecules of ozone. These molecules decompose when they come in contact with the UV thus avoiding to reach to the surface.
The ozone layer in Earth's stratosphere mostly blocks ultraviolet radiation from entering the surface. It absorbs the majority of harmful UVB and UVC radiation, allowing only UVA and some UVB radiation to reach the surface.
As the amount of ozone in the stratosphere decreases, more harmful ultraviolet (UV) radiation from the sun can reach Earth's surface. This can lead to increased health risks for humans, such as skin cancer and cataracts, as well as harm to marine life and ecosystems. Ozone depletion also affects weather patterns and can contribute to climate change.