The Earth Summit is also known as Rio de Janiero de Earth Summit, it is one of the major United Nations Conference and was held last June 3-4, 1992. There were:
1. 172 governments who participated
2. 2,400 non-governmental organizations
3. 17, 000 people at the parallel NGO
The nucleus is the control center of the cell, it also contains the DNA of the cell.
The answer is C. large changes in allele frequencies can occur in a short time.
Genetic drift is a change in the frequency of alleles in a population as a result of random sampling of organisms and it decreases genetic variation of the population. In specific circumstances, large and rapid changes in allele frequencies can occur in a short time. The smaller the population, the more susceptible it is to genetic drift.
Answer:
The pressure of a gas increases in a closed container if the volume of the gas decreases. Pressure and volume have inverse relationship which means if one increases the other decreases and vice versa. If pressure increases, volume of a gas decreases because there are a lot of empty spaces present between gas particles which are filled when gas particles come closer to each other due to pressure applied.
