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Outline one possible environmental impact of deforestation.

One major consequence of deforestation is loss of biodiversity due to habitat destruction. Habitat destruction affects individual species, as well as the environment as whole. For example, the popular demand...
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Answered by Lili G. • Geography tutor
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Evaluate the extent to which the Civil War fostered change in the US economy in the period 1861 to 1900.

The American Civil War had a major impact in American economy; while the North flourished, the South was left in ruins. The South, an agriculutural society, lost its ability to exploit profitable slave labor...
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Answered by Lili G. • History tutor
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Lead (IV) oxide reacts with concentrated hydrochloric acid as follows: PbO2(s) + 4HCl(aq) -----> PbCl2(s) + Cl2(g) + 2H2O(l) What mass of lead chloride would be obtained from 37.2g of PbO2, and what mass of chlorine gas would be produced

In this question we have to use the equation Moles= Mass(g)/ Mr. We have the mass of PbO2 so to find the moles we need to divide the mass, which is 37.2g, by Its Mr, which is 207.2 + (16 2) = 239.2. the answ...
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Answered by Aisha A. • Chemistry tutor
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Expand and simplify (3a+b)(a-2b).

To expand, you would multiply each term in the first bracket set by each term of the second bracket set. Thus, your expansion would mean:3a^2 -6ab + ab -2b^2 To simplify, note that there are two 'ab' terms i...
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Answered by Hansika R. • Maths tutor
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Please compare and contrast the structure of human blood vessels.

There are three blood vessel types in humans: arteries, veins and capillaries.Arteries pump blood away from the heart (easy point to remember - "A" in arteries = AWAY from the heart) while veins pu...
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Answered by Hansika R. • Biology tutor
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