The development of the population policies in the 20th century were due too multiple factors, the most important of which were:
- Fertility rates were starting to lower down, especially in the ''western world'' in the second half of the 20th century.
- Increased demand for labor force.
- The World Wars, especially the second one caused huge migration movements.
- Millions of people from less developed countries were trying to migrate to more developed countries in search of a better life.
Aquifer is simply ground water and one of the best sources of quality water for irrigation and home use.
aquifer can be polluted like any other sources of water.
This can happen when pollutants such as random gas, oils,and chemicals get into the aquifer thus contaminating it.
Answer: the answer that is the most logical is B
Explanation: because since mafic is basically like igneous rock it should be the answer.
Answer: Object A must have the higher heat capacity
Explanation:
Because it has stored the most heat. When placed in the other beaker, it releases the most heat by changing the water temperature the most.