Top answers

Why contemporary art is so difficult to understand?

This question started from the concept of 'canvas'. After WW2, artists started to be sceptical about human rationality. And the canvas was the symbol of human's rationality in art area. So artists stop drawi...
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Answered by Kyungmi K. • Art tutor
8412 Views

Why are drug trials needed?

To determine the side effects of taking the drug on humans, to test for toxicity, to determine the correct dosage needed, and to test the effectiveness (efficacy) of the drug.
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Answered by Devna P. • Biology tutor
3927 Views

How is crude oil separated into fractions?

Crude oil is seperated using a method called fractional distillation. The hydrocarbons that make up crude oil have different boiling points, so when the crude oil is heated, each compound evaporates at a dif...
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Answered by Devna P. • Chemistry tutor
14137 Views

what is the difference between indefinite and definite particles?

The definite particle in arabic includes the letters 'alif' and 'laam' at the beginning of the word, so pronounced as 'al'. The purpose is to render the noun on which it is pre-fixed to. Consequantly, it is ...
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Answered by Zainab I. • Arabic tutor
9559 Views

What is the difference between a recessive and dominant allele?

Alleles are different versions of a gene . Every person has two alleles for each gene (one from either parent). For example, the gene which determines eye colour can either have an allele for brown eyes or a...
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Answered by Elisha J. • Biology tutor
14464 Views