End-Triassic extinction, also called Triassic-Jurassic extinction, global extinction event occurring at the end of the Triassic Period (252 million to 201 million years ago) that resulted in the demise of some 76 percent of all marine and terrestrial species and about 20 percent of all taxonomic families.
This force develops a relation to the high and low-pressure areas of earth and does not affect the winds aloft as it travels up and down the isobars. The case of the atmospheric pressure gradient is balanced due to the earth's gravitational effects.
This effect comes into play due to the higher densities of air and changes in pressure changes that take place next to each other an taking into account the other factors like height of the atmosphere layers of thickness.
It also depends on the nature of terrain, winds direction and prevailing winds.
changes in the earth are similar to the changes of human beings because it evolves at the same time and humans evolve the earth, without it the earth may never change and it will collapse.