grow alot of plants that's help to make more h2o
No, we cannot touch gravity nor can we physically see it. We can only see how it works.
Density is the mass per unit volume of any object. It is calculated by dividing the mass of an object by its volume. This is:
ρ = m/V
ρ = 4.05 g / 12 mL
ρ = 0.3375 g/mL
<h3>
ρ ≅ 0.338 g/mL</h3>
OPTION A
Stars don't have moons and planets do