Which factor is most important in predicting whether an ecosystem is stable? O A. The amount of snowfall it has
B. The amount of biodiversity it has
O c. The number of migrating animals it has
O D. The number of seasonal changes it has

B. The amount of biodiversity it has

Explanation:

The most important factor in predicting whether an ecosystem is stable or not is by using the amount of biodiversity that it has.

This parameters helps to strategically measure how an ecosystem can respond to changes over time.

Biodiversity is the variation in life forms found within an ecosystem. The more diverse an ecosystem, the more stable and sustainable it is. Such an ecosystem is a able to withstand pressure from external influences. An ecosystem that is not diverse, will not be stable as small changes will significantly make the stability suffer.

D. a mountain abd are made by volcanos and tectonic plates

The answer is c, i, iii, and iv. this is because farming and mining deal with harvesting raw materials, construction work falls under manufacturing, and piloting a plane is a service. ii is wrong because making bread is using  raw materials to produce goods, which would fall under the secondary sector, not primary.