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1. Light energy from the Sun excites electrons in chlorophyll and the excited electrons are emitted.2. The chlorophyll molecule is now positively charged and chemically less stable. The lost electrons ...

Mark-release-recapture is a technique used to estimate the size of a population of a particular species. The steps involved are:1. Capture and count animals.2. Mark them in a way which is not toxic/harmfu...

Firstly, you can only complete the square on quadratic functions (functions in the form Ax²+Bx+C)

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The most important part of any English essay is the planning: you need to make sure that you know what you are writing about before you start. With a poetry co...

This rule might seem tricky at first. However, it is actually quite easy to follow after a bit of practice. Generally speaking, avoir is the main verb used to form the past tense. This is...