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With an example, describe what is meant by a destructive plate boundary and what feature (s) may form as a result.

A destructive plate boundary exists when a continental and oceanic plate boundary meet. The oceanic plate descends underneath the oceanic plate as it is denser. The build-up of friction between the two plate...
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Answered by Michael H. • Geography tutor
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How do I solve two simultaneous equations?

Supposing we have two equations x+2y=5 and 3x-y=10 and we want to find x and y we can use the following techinque. Multiply both the RHS and the LHS of the second equation by 2, giving us 6x-2y=20. Then add ...
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Answered by Theano X. • Maths tutor
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What is the derivative?

The derivative is a measure of the rate of change of f(x) as x varies. Alternatively it is the gradient of the tangent at a specific point of the graph. There are different rules for finding the derivative d...
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Answered by Theano X. • Maths tutor
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What is the Krebs cycle?

Photosynthesis has four stages: Glycolysis. The Link Reaction. 3. The Krebs Cycle. Oxidative Phosphorylation. Photosynthesis converts glucose from food into energy that the body can use called ATP. In the fi...
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Answered by Megan S. • Biology tutor
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Explain, in the context of catalysis, the term heterogeneous and describe the first stage in the mechanism of this type of catalysis.

A heterogeneous catalyst a catalyst that is in a alternative phase/state to the reactants. The first stage of catalysis by a heterogeneous catalyst is absorption of the reactants onto the surface of the cata...
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Answered by Hugo B. • Chemistry tutor
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