Choose the correct word from the drop-down menu to complete each sentence. is dark, highly decomposed organic matter found in soil.

is a mixture of materials that holds moisture and drains well.

contains coarse grains and allows water to drain quickly.

contains medium grains and retains water.

contains fine grains and has little space for water.

answer; i believe that the correct answer is (a) potassium(k)

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

c (diamond),

sio2 (quartz)