(A)Write the answers in short.
1. What percentage of the earth's surface is covered by lithosphere?
2. Up to how many kms from the earth's surface does the atmosphere extends?
3. What are the parts with large reservoirs in hydrosphere called ?
4. Which gas absorbs the ultraviolet rays of the Sun ?
Answers
Explanation:
1. The oceanic lithosphere covers approximately 60% of the Earth's surface. Well-constrained measurements of the seismic velocity structure of the crust and upper mantle beneath the ocean floor are sparse.
2. Most people think that the Earth's atmosphere stops a bit over 62 miles (100 km) from the surface, but a new study based on observations made over two decades ago by the joint US-European Solar and Heliospheric Observatory (SOHO) satellite shows that it actually extends as far 391,000 miles (630,000 km) or 50 times the ...
3.
4. Ozone in the lower part of the atmosphere acts as a greenhouse gas and is a major pollutant. Higher up, in the stratosphere, the ozone layer absorbs solar ultra-violet radiation and affects how much of the Sun's heat is radiated back into space.