You'll find lots of clouds over tropical climates and practically no clouds over desert climates. There is heavy rainfall in tropical climates and therefore relatively high rates of evaporation. High rates of evaporation leads to condensation and cloud formation. Desert climates like the Sahara Desert that only receives a few inches of rainfall per year would not have clouds due to the lack of surface water for evaporation.
Unconfined state not confined by impermeable material
We can immediately reject option D - while Spanish is an Indo-European language, Quechua is an indigenous language of the Americas.
The Spanish conquerors did not care much about the indigenous population - except if they could covert them, which would make them be seen as defenders of the Christian faith and win them favours with the Pope.
So they would not teach the indigenous population in secular schools, they would however, try to teach them religion. The correct answer is A - The Catholic clergy believed that Christianity would be adopted faster if translated into an indigenous language.
The change is due to the motion of the Earth in its orbit around the sun
