It is very hot and arid, which makes it hard to find edible food and drinkable water. There is not much vegetation.
The water cycle transports a plethera of microorganisms, and many of them are harmful for human beings. These include bacteria, protozoa, viruses, and lavae of high-ordered parasytes. Some of the aforementioned are Giardia, Cyptospordium, Shigella, E. coli, hepatitis A virus, and enterovirus.
Waters can also carry chemical wastes such as pesticides, and heavy metals dissolved in them. It is common to hear about acid rain as a result of pollution, and it originates as a result of mixing sulphur dioxide and nitrogen oxide with water molecules in the atmosphere.
There are several technological improvements over the past 100 years that have made the availability of clean water to communities a lot easier, and not only depend on boiling water. Filtration is the most common practice, it traps most unwanted particles and microorganisms, but it should be accompanied with chemical disinfection, which uses halogens to oxidize essential celluar structures and enzymes. In the present, chemical disinfection can even be achieved with adding a pill to a specific volume of water.
The atmosphere plays an important role in modulating the precipitation and also in the radiative forcing at the land surface, through the radiative effects of clouds, trace gases including carbon dioxide, water vapour and aerosols. ... Clouds are the prime regulator of the energy exchanges in the atmosphere.
Coordinate is -2,2, that is the answer because if you look at the x-axis point B is above -2 if you look at the Y axis it is right at 2
