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How to structure a 'compare and contrast' type of essay?

Let's take an example of comparing and contrasting the consolidation of power of two different Communist leaders, Stalin and Mao Tse-tung. The answer should address both key components of the question equall...
PS
Answered by Paulina S. • History tutor
14385 Views

Charles Darwin found that finches from different islands had different sized beaks. Explain why one island may have finches with large short beaks and another may have finches with long thin beaks.

The differences in the birds' beaks are due to evolution and natural selection. One island may have an abundance of seeds and nuts which require a large beak to crack them open, meaning that birds with a phe...
PB
Answered by Poppy B. • Biology tutor
3098 Views

Describe with a real world example, price elasticity of demand

Price elasticity of demand (PED) is a measure used to show the responsiveness of the quantity demand of a good to a price change and is generally expressed in percentages. This is extremely important for fir...
DJ
Answered by Dylan J. • Economics tutor
19181 Views

a )John heats up 2kg of water from 20 degrees c to 80 degrees c. How much energy input did this require? b )When John weighs the water at the end, he has less than he started with. Why might this be? c) What hazards are in this experiment?

a) energy transferred = mass.specific heat capacity.temperature change, or E = m.c.theta. c is provided at 4181 joules per kg. so E = 2.4181.(80-20) = 501720 joules b) some water has evaporated off as it was...
RH
Answered by Ruth H. • Physics tutor
3624 Views

How has the camel [shown, with summarising information] adapted to survive the desert? Briefly explain adaptation by natural selection.

Answers can include: lomg eyelashes and closing nostrils to protect from sand in the wind, large eyebrow ridge and thick eyebrows to protect from sun, thick fur to contain heat during cold nights, sandy colo...
RH
Answered by Ruth H. • Science tutor
4321 Views