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Describe the processes and forces that allow water movement up a plant stem.

Water moves into the plant stem from the soil, and up to the leaves via the xylem. Water is taken up by the hairs on the root of the plant down the water potential gradient via osmosis, following the active ...
HC
Answered by Hannah C. • Biology tutor
18814 Views

How do I multiply or divide fractions without a calculator?

For multiplication: Firstly, write out the sum you are trying to do, for example 3/4 X 1/8 Then, times the top numbers by each other and the bottom numbers by each other 3 x 1 = 3, 4 x 8 = 24 Then, rewrite t...
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Answered by William M. • Maths tutor
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What is urbanisation?

Before we look urbanisation, we have to define what we mean by urban and what we mean by rural. A rural area is an area of countryside, so for example a village or a hamlet. An urban area is a built up area,...
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Answered by Alice P. • Geography tutor
4993 Views

Work out the value of x and y in the parallelogram ABCD.

5x - 20 = 2x +43 -> 5x-2x= 43+20 -> 3x=63 -> x=21 therefore x=21 (2x+43) + (4y-5x)=180 -> 2x+43+4y-5x=180 (because adjacent angles in a parallelogram equals 180) 4y-3x=180-43 -> 4y= (100-43)+3...
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Answered by Kwarteng S. • Maths tutor
23369 Views

How many 0's are at the end of 100! (100 factorial)?

The number of 0's at the end of a number is the same as the number of factors of 10 that the number has. So consider the prime factor decomposition of 100! and note that every factor of 10 has prime factors ...
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Answered by Henry R. • MAT tutor
5082 Views