Drying Deserts with Air. Deserts cover around 20% of the Earth and are on every continent. They are mainly found around 30 to 50 degrees latitude, called the midlatitudes. ... Because the cooling air is above the equator, the moisture rains back down on the tropics.
A small change in a persons DNA can cause any number of mutations that may be completely harmless or fatal depending on where the mutation (change) occurs in ones DNA.
Answer:
e) the number of pairs of homologous chromosomes in a gamete.
Explanation:
A diploid cell is defined as the the cell containing two complete set of homologous chromosomes in a gamete.
In humans or other diploid sexually reproducing organism, sperm get fertilised with egg and produces a gamete with two haploid sets of chromosomes form a complete diploid set.A human diploid cell has 46 chromosomes in 23 pairs.
Hence, the correct option is e)
The Earth's Water Cycle involves Evaporation, Condensation, and Precipitation. Evaporation purifies the water resulting to the replenishment of freshwater to the Earth.
Water pollution is a concern despite of the water being continuously cycled through Earth's systems because the source of pollution is has not been removed.
Water pollution is defined as the contamination of bodies of water. Pollutants are directly or indirectly released to the bodies of water causing the water to be polluted.
Imagine: A river is filled with garbage, it is polluted. The water from the river undergoes the water cycle but since the garbage is still present in the river, the freshwater that comes from precipitation becomes polluted.