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 Monsoon Climate The tropical monsoon climate experiences abundant rainfall like that of the tropical rain forest climate, but it is concentrated in the high-sun season.Being located near the equator, the tropical monsoon climate experiences warm temperatures throughout the year.ike in the tropical rain forest climate, temperatures remain high all year in the monsoon climate. As shown in the climograph for Mangalore, India (Figure 9.4), the average annual temperature is 27.05 o C (80.7 o F) but only has an annual temperature range of 3.6 o C (2 o F) .