Following are the techniques or methods or approaches we can say that were used by the scientists to determine the geologic age:
1. Relative age dating
2. Absolute age dating.
3. Radiation measurement.
4. Stratigraphic superposition.
5. The fossil record.
The scientists used the method of relative dating to divide Earth's past in different chunks of time when alike organisms were on Earth. After that, to discover the actual number of years ago that events occurred, the scientists used the method of absolute dating.
Knowledge of a) physical geography provides the means to identify and describe natural features of the earth, icluding landforms, water, vegetation and climate.
Answer:
The regions that have negative demographic trends and the ones where religion has big political power are the ones where there are policies for expansion of the population.
Explanation:
When it comes to population policies, the world can be divided into two groups, one being the one that has policies to stop the population growth and the other that has policies to expand its population. Generally speaking, the Western countries and the Muslim countries are the ones that promote the expansion of their populations, though the reasons are different.
The Western countries face very low birthrates and aging populations, so they have such policies in order to experience a decline of their populations and to have enough labor force for their economies. The Muslim countries, on the other hand, are countries where the religious authorities have big political power, and as it has always been the case in such situations, there is policies in place for expansion of the population so that the religion has more power through more followers, and maybe even expand by attacking other countries in the future.
Answer:
It is more reliable.
Explanation:
A primary source is an immediate firsthand account while a secondary source is a source from someone who wasn't right there normally.
