E-85 A) was an international summit of 85 nations that met to restrict greenhouse gas emissions B) was an international summit of 85 nations that met to restrict CFC use C) is an ethanol-gasoline mixtureD) was an international summit of 85 nations that met to determine vehicle fuel efficiency standards E) is an isotope of uranium used to generate electricity

C. Is an ethanol-gasoline mixture

Explanation:

E-85 is a designation used to represent a combination of ethanol and gasoline. It indicates an ethanol content of 85% and a gasoline content of 15%. Most countries with cold temperatures practice this mixture of ethanol with gasoline, because, ethanol makes it hard for the engines of vehicles to crank.

A major agricultural produce used in the production of ethanol is corn which undergoes fermentation. Some countries who use E-85 as a source of fuel include; the United States, as well as Sweden.

1   all nations face the problem of scarcity because there are limited resources and unlimited wants. nations do not have enough factors of production to produce everything that their population wants. entrepreneurial resources initiate businesses to make new goods and services; labor resources produce goods and services.

2 there are four factors of production: natural resources, labor resources, capital resources, and entrepreneurial resources. natural resources are raw materials from nature that are used to produce goods. trees, water, and grains are natural resources. some natural resources, such as wheat and cattle, are renewable

3 wants

things that you do not need to have in order to survive, but would like to have

needs

things that you must have in order to survive

goods

physical products

services

tasks that a business perform for customers

resources

items that people can use to make or obtain what they need or want

determine

to settle or decide by choice of alternatives or possiblities

4 i really dont know