Soil is a mixture of
a. solids
b. solids, liquids, and gases
c. solids and liquids
d. solids and gases

soil is a mixture of broken rocks and minerals, living organisms, and decaying organic matter called humus. humus is dark, soft and rich in nutrients. soil also includes air and water. organisms in the soil need air and water to survive.

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.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully