Gravity largely depends on the comparison of two objects; it's why you have the equation F= (GMm)/r^2. On Earth, you have different altitudes that, with the formula, will give different results for gravity because the radius is different everywhere. This difference on calculations, however, are seen to be miniscule. We know gravity as 9.81 m/s^2 but it might be different by thousandths or hundreds of thousandths of a decimal.
Stable isotopes, radioisotopes, oxygen
A)planets
b)the sun
c)moons
e)comets
f)asteroids
Answer:
air because their is nothing contained within the air other than all the solutions that you have listed
Explanation:
Convection, because it is the process of heat transfer from one location to the next by the movement of fluids. The moving fluid carries energy within it.