How is this useful?
It gives heat to the plants in the water, so that they may grow; and it rouses into active life, the fish and other breathing things, from the torpid state in which they are during winter.
Does water store away a large amount of heat?
It does; and thus the summer is made much cooler.
How does water make Autumn warmer?
In the autumn the heat in the water is given off, so that the air is kept warmer than it would otherwise be.
How does this affect autumn weather?
It makes that season of the year mild and pleasant.
What advantage is derived from this?
It gives the late fruits and seeds a chance to ripen; and it affords time for the sap of plants to return to the roots, and to become prepared for the frosts of winter.