Africa is diverse in it's inhabitants, history both political and social, and geography.
The continent is massive and covers all four hemispheres.
As the site of the "birthplace of humanity", and many of the world's treasured minerals occur here, Africa provides economic opportunity found in few other places.
Northern Africa has rich landscape in the Fertile Crescent of Earth,
the Sahara is historically the home of many now endangered animals.
England, France, Spain, and most other developed nations have colonized Africa in some way, including the United States, in it's own unique way. (See: The Poisonwood Bible)
Tribal and foreign languages are equally common, as colonization and immigration are wide-spread.
Geographically, the "borders" within Africa are arbitrary and have lead to Tribal conflict, perpetuating the notion that African tribes are barbaric, savagely, or lesser humans. These borders were imposed by immigrants from Europe.
Trade and commerce in Africa keeps economy growing, but only in ways that benefit more-developed countries.
Hi there!
To define gravity in a way you can understand, gravity means the force of something acting upon something else to bring it down back to the ground.
For example, gravity is what pulls us to the ground when we jump in the air. You can't just jump in the air and stay in place, right?
Another good example is if there was a spaceship directly in between the Earth and the Moon, it would very very very slowly go toward the earth because of its gravitational pull on the spaceship.
Hope this helps! :D
Remember, just message me if you need anymore help on anything!
Las coordenadas geográficas son un sistema de referencia que permite que cada ubicación en la Tierra sea especificada por un conjunto de números, letras o símbolos.
Answer: Ozone is considered as chief polluting gas.
Explanation:
The ozone is a ground level pollutant. It is a colorless gas. It causes irritation in the eyes and respiratory tract. It is one of the components of smog as it causes pollution in the atmosphere. It is produced by the two primary pollutants that are nitrogen oxides and volatile organic compounds when they react with the sunlight. The ozone makes the air irrespirable. It is the main cause of throat irritation, labored breath, pain in chest and also responsible for respiratory diseases. It reduces the body's ability against infection. The ozone depleting substances like aerosol, chlorofluorocarbon are widening the ozone depleting zone as halides present in these substances react with the ozone causing depletion. This allows the entry of harmful ultraviolet radiation penetrating the atmospheric layers.