17-03-2020
Chemistry

contestada

3. Which element is most important for growing crops?
a. carbon dioxide
BA
b. hydrogen
C. calcium
d. nitrogen
4. Who discovered how to manipulate equilibrium systems?

Respuesta :

dorcasolorunshola dorcasolorunshola

17-03-2020

Answer:

B. hydrogen

Explanation:

that's because hydrogen is an element.

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