If the poreis completely closed to the surface, the result is a whitehead. If the pore is wide open, oil becomes oxidized (that is, acted on by oxygen in the air), the oil changes from white to black, and the result is a blackhead. This is how the two types of comedones develop. Comedo is the Latin word for glutton.
The Amazon rainforest topical climate. Tropical climate refers to zones in a range of latitudes between 5/10 to 35. The temperatures remain high all over the year and shows an annual wide change in precipitations with wet and dry seasons: The dry season duration is proportional to the latitude to ultimatly become a mostly dry area.
Tropical climates are found in areas that lie close to the equator. Here the sun shines intensely. Within tropical climates, there are three groups: tropical wet; tropical wet and dry; and tropical monsoon. Tropical wet regions, also known as rain forests, have the most predictable weather on earth.Here, everyday is pretty much the same.un Facts About Tropical Climates for Kids. 1  Hawaii has a tropical rainforest climate. 2  Monsoon climates can be found in southern Asia and West Africa. 3  Africaâs Serengeti Plain is an example of a wet dry tropical climate.