When scientists proclaimed that the earth is round, not flat,
A.
the theory was not accepted and is still being debated.
B.
it took many years for the theory to be accepted.
C.
everyone immediately accepted the theory as fact.
D.
the theory was assumed to be correct because really smart scientists came up with it.

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a