In terms of the Earth's atmosphere, they occupy regions called the thermosphere and the exosphere. The layer through which a satellite orbits depends on the satellite's function and the kind of orbit it has.
The thermosphere is a region of very high temperature that extends from the top of the mesosphere at around 85 kilometers (53 miles) up to 640 kilometers (400 miles) above the Earth's surface. It is called the thermosphere because temperatures can reach up to 1,500 degrees Celsius (2,732 degrees Fahrenheit).
However, despite the high temperatures, the pressure is very low, so satellites don't suffer heat damage.
Donkeys and horses can be breed to make mules and hinnys.
A hinny is a domestic equine hybrid that is the offspring of a male horse, a stallion, and a female donkey, a jenny. It is the reciprocal cross to the more common mule, which is the product of a male donkey, a jack, and a female horse, a mare.
The common greenhouse gas containing only hydrogen and oxygen is H2O, this is water vapor.
The common greenhouse gases are water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
The composition (chemical formula) of those gases are:
Water vapor: H2O
Carbon dioxide: CO2
Methane: CH4
Nitrous oxide: NO
Ozone: O3.
As you see the only one of those that contains only hydrogen and oxygen is H2O, water vapor.
In the annual World University Rankings released by Times Higher Education, the Indian Institute of Science of India has reached 251-300 band from last year's 201-250 band, while Oxford and Cambridge universities are on the top in the Global 1000 list.
A person or scientist who studies on water is called as Hydrologist. Since the study of water and its properties is known as Hydrology, the persons who deals with this field are known as Hydrologists.
Geographer :
A scientist who studies Earth's natural environment and how human society uses the natural environment.
Herpetologist :
A person who studies reptiles and amphibians.
Archeologist :
Someone who studies people and what they did in the past from the things they left behind.
Prahaar is a contemporary weapon system capable of carrying multiple types of warheads & neutralizing a wide variety of targets. It is a indigenously developed surface-to-surface tactical missile by DRDO.
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