Which of the following has the greatest effect on soil's capacity to retain water?
A Soil color
B Soil particle size
C Soil texture
D Soil fragrance

B.

Explanation:

In general the higher the percentage of slit and clay sized particles the higher the water holding capacity.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds