The conclusion that is supported by the statement is : Desertification reduced the amount of arable land available to Africans and Europeans
Since the land couldn't be used to grow Crops, the ancient European does not see African Land as a region that is worth to conquer. Even until today, the modern African only used Sahara as an highway
2 is C or Abc of the Indus Civilization and Egyptian civilization breakthrough 3 is b or A
Answer: sample size
Explanation: sample size simply means the number of observations or items chosen as a representation of a population. Sample size is an important terminology used in statistical analysis as most statistical or experimental research cannot be performed using all the available observations in the entire population either due to cost or total impossibility. The larger the sample size, the better the generalization made about the entire population.
Therefore, a sample size consisting of 10,000 participants or observations will generalize more and hence, attract greater value and interest than the same analysis with a sample size of 24 participants.
