Answer:
A feature of the reduction in death rates has been the increased excess mortality of males. There have also been big and rapid reductions in death rates in many developing countries, even in the absence of important improvements in living standards. Antibiotics and insecticides have made a major contribution to this movement in the last twenty years. It is unlikely that death rates will fall as rapidly in the next few decades as in the recent past in either developed or developing countries.
Answer:
1. Drainage Basin
2. mouth
3. discharge
4. headwaters
5. meanders.
6. floodplain
Explanation:
A drainage basin is an area where water from precipitation such as rainwater collects before draining into a water body such as a river.
A delta is created where the highest quantity of sediments are deposited at the mouth of a river.
A river's discharge is the quantity of water flowing through a channel in a river.
The headwaters of a river are the source of water of a river, and are usually the farthest point from where it joins/empties into another water body.
Meanders are common feature of A stream with a low to moderate gradient.
A river with a well-developed floodplain has a flat low-lying channel and floods when there is a high quantity of water flowing through the river.
The soil layers are, in order: dirt, humus, rock. So the answer is D.
