The biggest contributor to ecological footprint is what? (please choose the correct one from the four examples that are down)
1) bikes
2)Recycling
3)Composting
4)Automobiles

Using complete sentences, explain the differences between a command economy and a market economy. what type of economic system is created when these two systems are combined? what are the benefits of combining these two systems?

Which process collects sample soils from particular areas of a site? a.) repetitive sampling b.) restorative sampling c.) random sampling d.) representative sampling

The european union was formally established in