Earth seems to be the only planet in our solar system that can support life. all but one of these is a reason why life is found only on earth. that is
a) a moderate climate.
b) the presence of water on earth.
c) it is the perfect distance from the sun.
d) it has gravity to hold an atmosphere in place.

D is the correct answer.

Explanation:

I can't really explain this...

Homogenous means a item/thing which is perfectly mixed. for example lemonade is a homogenous mixture because the sugar, lemon juice and water are perfectly mixed.
heterogenous mixture means a item/thing which is not clearly mixed. for example if you mix sand and water you can still see sand in the bottom of the cup, meaning the sand hasn’t mixed well with water.
plastics and utensils are *considered* homogenous because it has a clean texture and you can’t really tell what has been added to make this from just looking at it.