Answer:
Explanation:
You could test effect of oxygen levels on growth of a regular houseplant. You could make the control to be plant grown under regular atmospheric Oxygen level. And for changing variables you could have one plant grow at low oxygen level compared to atmospheric oxygen and another plant to grow at higher levels of oxygen when compared to atmospheric oxygen.
<span>It is true that because the earth has mass it also has a gravitational field.
Every other mass in Creation experiences a gravitational force that
attracts it toward the center of the Earth, and the Earth experiences
a gravitational force that attracts it to every other mass in Creation. </span>
The amplitude of the resultant wave is greater than the amplitude of either of the two individual waves.
Answer:
1.59
Explanation:
density is mass divides by volume so 340.6/ 214 = 1.59