Convection cell
Air Pressure and Winds
Warm air rises, creating an upward-flowing limb of a convection cell (Figure 15.19). Upward flowing air lowers the air pressure of the area, forming a low pressure zone. The rising air sucks in air from the surrounding area, creating wind.
Galapagos islands are groups of island in the pacific ocean that are known to have a wide range of native animals such as giant tortoise that found no where else on earth. These native animals helped Darwin in the development of the theory of natural significance which attributes to the biological significance of the Galapagos islands. Human species is a threat to the natural wildlife on these islands mainly due to poaching and destruction of natural forests that destroys habitat and also impacts negatively on biological diversity of living organisms.
Solution:
It is the system of earth with orbiting satellites, transmitting signals continuously towards the earth,which enable the position of receiving device on near the earth's surface to be accurately estimated from the difference in arrival times.
The Earth system has always changed. But right now it has an additional pressure forcing change: human activites. This force is now global and dominant. The response of the Earth system to this pressure is an important area of science. Which are as follows:
• Oceans
• Land
• Cryosphere
• Life
This is the required right answer.
