Answer:
Answer: The Himalaya act as a boon for India as they act as a barrier to cold Siberian winds. they give tropical touch to the climate of the India. They stop rear bearing Monsoon winds from crossing into Tibet and force the wids to shed their moisture within Indian subcontinent.
The index fossils are fossils that are found in the rock strata of certain geologic period, but they are also fossils that are very common and can be found in numerous places around the globe.
Because they can be found all over the globe, and they are indicative of certain geologic period, the geologists have started to use them as a simple way of determining the age of the rock strata. While this method can not provide the geologists with an accurate year for the formation of the rocks, it is still able to determine the relative age of the rocks. By determining the relative age with such ease by using the index fossils, the geologists are able to immediately make conclusions about the rock strata, have basic information about it, and largely be aware of the processes that formed them and influenced them.
The plague was spread because of the poor hygeine back in that time
