The answer you are looking for is under option A
Answer:
In addition to genealogical changes, many of the early changes in Indo-European languages can be attributed to language contact. It has been asserted, for example, that many of the more striking features shared by Italic languages (Latin, Oscan, Umbrian, etc.) might well be areal features.
Explanation:
Answer: A higher dependency ratio is likely to reduce productivity growth. A growth in the non-productive population will diminish productive capacity and could lead to a lower long-run trend rate of economic growth.
Answer:
Epipelagic Zone - 200 meters
Mesopelagic Zone - 200 meters to 1,000 meters
Bthypelagic Zone - 4,000 meters
Abyssopelagic Zone - 6,000 meters
Hadalpelagic Zone - 6,000 meters to 10,000 meters
Droughts: Droughts are usually caused by high temperatures and to super dry weather