Answer:
groundwater is water that occupies the zone of saturation within the ground. the water table is the upper limit of the groundwater.
Answer:
Explanation:
Deforestation, clearance, clear cutting or clearing is the removal of a forest or stand of trees from land which is then converted to a non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. ... About 31% of Earth's land surface is covered by forests.. The most concentrated deforestation occurs in tropical rain forests.
Answer:
Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy
Explanation:
The Blue Nile begins at Lake Tana in Ethiopia and flows into Sudan from the southeast. The two rivers meet just north of the Sudanese capital of Khartoum. The northern section of the river flows north almost entirely through the Sudanese desert to Egypt, then ends in a large delta and flows into the Mediterranean Sea.
