B. Allele is a form of gene.
The correct answers are:
- Nations will adopt a universal language;
With the globalization, more and more languages are becoming endangered, and very soon will be gone forever. The reason with this is that with the globalization, there's also a language that is spread around, the English language, and the majority of the young population is very fond of it and learns it, neglecting their own language in meantime.
- More languages will become extinct;
Because the spreading of a universal language seems to be taken place, with the English language being the front runner, and because the young generations tend to focus on it more than at their own language, the native languages will die out relatively quickly in the future, at least most of them.
Factors increasing erosion
Coastal erosion: the strength of the waves breaking along the coastline. Bigger, stronger waves have more erosive power.
Abrasion - rocks carried along by the river wear down the river bed and banks.
Attrition - rocks being carried by the river smash together and break into smaller, smoother and rounder particles.
The answer is B. freezing temperatures
It's in the Middle East. Their climate is typically hot and dry. Though they have winter but just mild. Never will the temperature in the Middle East freezes.