It is known as the sedimentation.. this process spreads widely (horizontally) keeping the youngest on the top and the oldest at the bottom..
hope this helps:)
Artificial and Natural selection are really the same process but one is driven by man and the other is driven by an organism's traits that allow them to survive and reproduce. Artificial selection is when mankind chooses certain traits in plants and animals and breeds to enhance that trait.
The answer is the letter C i think
Using Red Litmus Paper. Red litmus paper is dipped into a solution to establish whether a substance is acidic or alkaline. In an acidic or neutral solution, red litmus paper remains red. ... When an alkaline compound dissolves in water, it produces hydroxide ions, which cause the solution to become alkaline.
In my opinion, out of the many indexes about the development of a country, the three most reliable ones about the level of development would be the GDP nominal, the GDP per capita, and the human rights index.
The GDP nominal will show the overall welfare of the country, the sum of its economy, its production, the way it manages the finances, the progress or decline it is making.
The GDP per capita will show us the average income of the people in the country. So this index will provide us with information about how well the wealth in the country is distributed, are the people poor, middle class, or rich, and what they can or can not afford in their lives.
The human rights index is very important as it defines the basics of the daily lives and the rights that the people have. The more freedom the people have in their expression, the choices in life, their actions, the happier the people would be, and vice versa, the more restricted they are, the less happy would they be.
