NEET BIOLOGY

Detailed explanation-1: -River is a large natural stream of flowing water. Eventually all this water from rivers and streams will run into the ocean.

Detailed explanation-2: -Almost all of the water eventually flows into the oceans or other bodies of water, where the cycle continues. At different stages of the cycle, some of the water is intercepted by humans or other life forms for drinking, washing, irrigating, and a large variety of other uses.

Detailed explanation-3: -Flowing water finds its way downhill initially as small creeks. As small creeks flow downhill they merge to form larger streams and rivers. Rivers eventually end up flowing into the oceans. If water flows to a place that is surrounded by higher land on all sides, a lake will form.

Detailed explanation-4: -After the Earth’s surface had cooled to a temperature below the boiling point of water, rain began to fall-and continued to fall for centuries. As the water drained into the great hollows in the Earth’s surface, the primeval ocean came into existence. The forces of gravity prevented the water from leaving the planet.

Detailed explanation-5: -Rain and snow that falls on the land either seeps into low places – feeding aquifers and groundwater tables –or flows down hill, forming headwaters. These headwaters flow into streams, which in turn flow into rivers or lakes. Eventually, these waters flow to the sea, starting the cycle over again.