The correct option here is:
c. food , water, and shelter
Explanation:
According to Mr. Freamon, creatures within an ecosystem compete for various sorts of resources that are with limited availability to them and this competition in a way decides their hierarchy and their place in the food chain.
This is mainly determined on the three main parts:
food
water
shelter
Water is aplenty near rivers but a major resource in arid areas similarly food availability and shelter have always been major issues.
The correct answer is C) the level of output and in the level of prices.
Shifts in the aggregate demand curve can cause fluctuations in the level of output and the level of prices.
In economics, the aggregate demand curve represents the sum of all goods and services demanded by the economy at different price levels. The aggregate demand curve is the graph that shows how many services and products companies and the government are willing to purchase. Its descending slopping describes the inverse relationship between the quantity demanded and the price.
Here is a few I found.
Mining
Hydropower
Petroleum
The powder keg of europe is a diagrammatic illustration of European political alliances in the period leading up to the First World War. The "Powder keg of Europe<span>", sometimes alternately </span>known<span> as the "</span>Balkan Powder Keg<span>", refers to the </span>Balkans<span> in the early part of the 20th century preceding World War I.</span>
