Answer: Groundwater is the water that flows in the underground surface of the rock that bear water and due the underground flow they don't have any downward direction flow.
Explanation:Groundwater flows in a direction from high to low level under the ground.They flow in the water bearing rock layer which has soil, rocks , sand , gravel etc. So,groundwater provides the water to these through small passages in the rocks. They only flow in the downward direction where they find spaces or cracks to flow beneath the ground.
Answer:
Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy, and rainfall is scant. Tundra lands are covered with snow for much of the year, but summer brings bursts of wildflowers.
Explanation:
Answer:
How long does it have to be ?
Answer:
<u>Relative dating </u> determines the order of layers of rock based on their relationship to one another .
Explanation:
Relative dating -
The method to determine the relative order of the past events , without finding the absolute ages .
The actual numerical dates of the rocks are not provided by this method .
Even the order of the series of the past is determined by this method , not when the event occurred .
The preferred method in paleontology is done by relative dating by biostratigraphy , and is very accurate .
Answer:
Indian ocean
Explanation:
Indian ocean is the water body which named after the subcontinent lies in north to it. Indian subcontinent includes:- India, Pakistan, Bhutan, Bangladesh, Nepal and Afghanistan, Maldives, Sri Lanka. Once the continent was the piece of Gondwanaland and now termed as Indian subcontinent. The ocean southern to Indian subcontinent is named as Indian ocean because of this subcontinent.