The correct answer is C) genetic variation.
<em>The term that best describes the difference in colors of the birds below is genetic variation.
</em>
A genetic variation describes the variation of the sequence of the DNA in our genomes. This genetic variation allows humans, plants, and animals to have specific characteristics. In the case of the picture with the birds, these birds show a difference in colors due to genetic variation. Genetic variation is part of evolution, the genetic information that passes down from generation to generation.
Answer:
1. Ganga-Brahmaputra delta is the largest delta in the world with a surface area of around 100,000 Sq. km.
2. It is crisscrossed by many rivers joining the sea, mainly three rivers Ganga, Brahmaputra and Meghna.
3. Having one of the highest rainfalls in the world (Cherapunji in Khasi hills to the north of the delta has the record for highest annual rainfall at any spot on the Earth, about tan metres.) and not many deltas have that.
4. This region is the most fertile region in the world.
5. Most of the delta has a population density of more than 200 persons/Sq.km.(520 person per square miles), making it one of the most densely populated regions of the world.
Explanation:
In 1800, there were 5,308,483 people living in the Northeast. In 2000, there were 281,421,906 people. The answer is 2000.
C. The Southern blockade was working.
