What percentage of solar radiation that hits the Earth's atmosphere ever reaches the surface?

A small object from outer space that passes through Earth's atmosphere and reaches the Earth's surface is called _________.

The intensity of solar radiation just outside the earth's atmosphere is measured to be 1.4 kW//m^2 . If the radius of the sun 7xx10^8m , while the earth-sun distance is 150xx10^6km , then find i. the intensity of salr radiation at the surface of the sun. ii. the temperature at the surface of the sun assuming it to be a black body, iii. the most probable wavelength in solar radiation.

The percentage of nitrogen present in earth's atmosphere is

What percentage of solar radiation is absorbed by all the green plants for photosynthesis ?