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Greenhouse gases include methane and carbon dioxide. These gases enhance the greenhouse effect which consequently warm up our planet. 

The sun's energy arrives as short wave radiation, this type of...

(Draw the two out) 

Chlorine has 7 electrons in its outer shell while sodium has only one.

In a food chain, very little energy is passed onto the next trophic level - this is because living creatures create waste.  Energy passes out of the food chain in a number of ways, including; - energy use...

Use the product rule:

d/dx(fg) = f'g + fg'

f = x²    f' = 2x   g = sin(x)  g' = cos(x)

answer = 2xsin(x) + x²cos(x)

Cache is a small amount of memory which is part of the CPU which is physically closer to the CPU than RAM is. The more cache there is, the more data can be stored closer to the CPU. Cache memory is benefi...