4 x 3 x 2 different ways, ie 24
24
There are 24 ways (4 times 3 times 2 times 1) to put 4 different letters in order.
The different methods evolved separately. Also, different ways are sometimes better in different situations.
Five different letters.5!5 * 4 * 3 * 2= 120 ways========
animal dispersal and wind dispersal
Both are almost the same concept. i.e. Wind, water, and animals.
I only have 4, skimming/vacuuming, burning, bioremediation and dispersal agents.
Dispersal can be caused by wind,water,or living things,including humans
I think 4 different ways
Self dispersal water and wind
4! = 24, they can be arranged in 24 different ways
4 people seated on a row may have 4! = 4x3x2x1 = 24 different ways to sit.
24 ways
wind dispersal, water dispersal, animal dispersal and mechanical dispersal
4 x 3 x 2 different ways, ie 24
24