Which statements about salt water are true? Check all that apply.

Salt water contains minerals other than salt.

Fresh water is heavier than salt water.

Objects float more easily in oceans than in lakes or rivers.

The temperature of ocean water is affected by the depth of the water.

The temperature of ocean water is affected by the ocean's location.

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?