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The surface run-off of nitrate from agricultural fertiliser into freshwater ponds and lakes can cause the death of the fish. Explain how this happens.

This question crops up a lot and may be up to a five mark question, if you learn the key points and terms you can be confident of getting all the marks you can here!

First of all,

Answered by Sarah M. • Biology tutor

5365 Views

What is translation?

Translation is the process of production of protein from a mRNA template, with the help of the rRNA and tRNA.

Answered by Jane P. • Chemistry tutor

2838 Views

Which is the essential enzyme in the Calvin Cycle?

The answer is RuBisCo (or simply Rubisco). This enzyme helps in the formation of two 3-carbon molecules = glyceraldehyde-3-phosphate (G3P) from a pentose. The process involves the fixation of CO2 in th...

Answered by Jane P. • Chemistry tutor

2739 Views

When do I need to put an accent (pronunciation rules)?

Spanish is great because it is a language which is completely phonetic, which means it is read exactly how it is written and always follows certain rules. One of those rules is about stress. All multi-...

Answered by Sebastian B. • Spanish tutor

4513 Views

What are the best ways to practise Spanish at home if no one speaks it?

In the modern era, there are more ways than ever to practise a language without knowing someone who speaks it. Obviously, if you do know someone, that'd be ideal, but until you meet a Spanish speaking ...

Answered by Sebastian B. • Spanish tutor

3637 Views