The answer is Fertile Soil
Answer:
The continents are light in color because they contain:
( A ) silicon and aluminum
Explanation:
Continental crust -
Continental crust contains more light-colored rocks than oceanic crust .
The continents crust are light in color because they contain:
silicon and aluminum but in the oceanic crust silicon and aluminium not present.
In oceanic crust only silicon and magnesium is present , which is responsible for the dark crust of ocean.
Hence,
Correct option is - ( A ) silicon and aluminum
Answer:
I believe the answer is C. Spectroscope
Explanation:
"To study the atmospheres of other planets and their moons, earthbound astronomers use a set of techniques called spectroscopy. Light is collected by a telescope and split into its component wavelengths, creating a spectrum."
HIPWAC - NASAhttps://ssed.gsfc.nasa.gov › hipwac › howitworks
Answer:
54%
Explanation:
In the United States of America, according to the Land-Use Planning the following at percentages in which lands are to be used or distributed:
1. For cropland 20% is allowed
2. For parks and preserves 13% is allowed
3. For rangeland & pasture, that is open grazing 26% is allowed
4. For forest land, that is logging or timber and paper 28% is allowed
5. For urban areas, that is, residential, commercial, industrial etc. 6% is allowed
6. Others, such as reservoirs, mining, power plants 7% is allowed
Hence, the percentage of forest in the country which is meat for grazing and logging is 26% + 28% = 54%