Questions

Gene flow means migration of genes from one to another. This gene flow is caused by individuals moving into population.

A manometer is used to measure a pressure difference between two points.

Switzerland and Norway

In high plateaus of the Hot  Wet Equatorial Region the temperature is very much lower and so the "Ecuador type' of climate develops typically on the high plateau of Ecuador at an elevation of about 2430 to 3050 meter. Because of the pleasant average temperature of, 13oC. This is described as the "Land of eternal spring".

This difference proves that the earth is flattened at the poles and is thus, not a perfect sphere. The shape is reffered to as "geoid"

The 90oEast Ridge is aseismic, composed of volcanic rock it is about 1700 km long treading in a NNE direction into Bay of Bengal from the Indian Ocean.