What was a major consequence of the large-scale ecological changes in africa around 60,000 and 10,000 years ago? australopithecus africanus survived by building structures to store water and grain. neanderthals and cro-magnons fought wars to control game herds. bigger-brained hominins such as homo sapiens survived because they adapted to changing environments. spreading ice sheets led to the death of many animals hunted by early hominins.

Option: Bigger-brained hominids such as Homo sapiens survived because they adapted to changing environments.

Explanation:  

The large-scale ecological changes in Africa around 60,000 and 10,000 years ago led to a change in climatic transformations that were happening around that time. Homo sapiens developed practices that helped them respond to the challenges of survival. They also spread out of Africa in small groups in the farthest reaches of the Earth. It was also recorded in the expansion of the population after the migration from Africa.

all of the choices are correct

the california missions began in the late 18th century as an effort to convert native americans to catholicism and expand european territory. there were 21 missions in all, lasting from 1769 until about 1833.   the missions were built by the spanish starting in 1769 in order to “colonize” the territory of alta california. so the missions were important because they were the means of settling california. it also wanted to keep other european countries out of alta california. building settlements along the coast would them meet these goals. missionaries wanted to convert the indians to the roman catholic faith. california indians did much of the work to build missions.