Answer:
cardboard effect. Not sure though.
A. freshwater fishing.
my reasoning:
Inside the Middle East, most countries have large supplies of oil, (which helps make the countries rich as they are today because of oil demands), which takes out the options C & D. The Middle East, is located within the Sahara desert, and so can contribute to desert research (B) as well.
So A, is your most logical choice.
hope this helps
Answer: 1/3 hot dog per hour
Explanation: Opportunity cost is a term used by economists to mean what you have to forego in order to choose something else. Opportunity cost refers to what you have to sacrifice to buy what you want in terms of other services or goods.
In this case Albert can produce 3 hamburgers in one hour, and also he can produce 1 hot dog in 1 hour
it can expressed:
1 hot dog = 1 hour
3 hamburger= 1 hour
Equating both equations and simplifying it gives:
1 hamburger = 1/3 hot dogs
The citizens of the United States choose their next president.
Peter The Great moved the Capital of Russia to St. Petersburg and helped modernize the country into a thriving nation. He sent Russians to western schools so that they returned as experienced man, he stimulated the industry and commerce, he promoted metallurgy as a new industry and soon became a top producer in cast iron melting. He helped create the modernized russian nation we know today.