A • the ocean ... I think
The deer eat grass. Its droppings, which eventually decompose into the ground, provide minerals and vitamins to the plant roots. This food is vital for it so the plant remains alive and can produce oxygen which is essential for the deer and grass is also a food source for him too.
The magnetic marbles will attract to each other despite being mixed in with the ordinary marbles. The chance they will touch depends on how many marbles are in the jar and how many magnetic marbles were put in.
"A candidate" is the way among the following choices given in the question that the political parties are primarily defined. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that has come to your good help.
