The answer to life is 42...The optimum angle for white light to refract through water and thus form a rainbow is between 40.89 and 42 degrees."Two physical constants<span> in the universe are the speed of light and the diameter of a proton. It takes light 10 to the minus 42nd power seconds to cross the diameter of a proton."
</span>Google Says so.
If we have a dark colored, coarse soil and reddish smooth soil for comparison, we can find lots of differences in them.
- The dark soil will have bigger layer of humus, while the reddish one will have a very small almost unnoticeable layer of humus.
- The color differs a lot, while the dark soil will have a dark brownish color, the reddish one will have intense orange-red color.
- The vertical profile of the soils will differ a lot; the dark one will have much bigger top two layers, while the reddish one will have very small upper layers and dominant middle layer.
- The dark soil will be rich in biomass, while the reddish one will be rich in iron and clay.
Each system is unique, yet each interacts with the others.
Africa is huge meant that it is the second largest Continent on Earth.
Option: B
Explanation:
Africa is the second largest continent in respect of its size and population also. The first largest continent is Asia. Africa covered almost 6% of earth's surface alone. It is land of diversities of racial and ethnicity. Africa is characterized by hot and humid climate. Kalahari, Sahara desert is located in the Africa.
World's famous equatorial forest of Congo basin is in Africa where equatorial climate is present. Tropical equatorial climate is characterized by high temperature and high rainfall. This basin is situated side of Zaire river. Many tribal people are residing in Africa.
