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What is the greenhouse effect?

The greenhouse effect is actually a naturally occuring phenomenon.Energy that is released or reflected by the earth's surface is trapped and reflected back by greenhouse gases in the atmosphere (e.g. carbon ...
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Answered by Mara F. • Geography tutor
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What is the difference between mitosis and meiosis?

The main difference is that meiosis halves the number of chromosomes (2n-->n) whereas mitosis does not. (2n-->2n) Mitosis is simply the division of the nucleus, creating to genetically identical daught...
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Answered by Mara F. • Biology tutor
10812 Views

What is the difference between the COI and COD in French?

Called "COD" (Direct Object Pronoun) and "COI" (Indirect Object Pronoun) in French, there are not used in the same context as in English. For example: Je connais Jean. -> Je connais QU...
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Answered by Lucie L. • French tutor
37273 Views

What is the difference bewteen "um zu" and "damit"?

Both "um zu" and "damit" are used to express a goal, a purpose. The question asked before often starts with "Wofür", "Wozu?", "Mit welchem Ziel?". "Um z...
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Answered by Lucie L. • German tutor
10969 Views

Find the gradient of the curve (x^3)-4(y^2)=12xy at the point P(-8,8)

First of all differentiate the equation of the curve implicitly, giving: 3x 2 -8y(dy/dx)=12y+12x(dy/dx) => (dy/dx)(12x+8y)=3x 2 -12y => dy/dx=(3x 2 -12y)/(12x+8y) As dy/dx is the gradient of the curve,...
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