Resources that are naturally replenished are resources. buy resources that influence the supply and demand of an economy. Coal and other fossil fuels are examples of resources. The amount of human effort necessary to produce products that support the economy describes resources.

Sam and ben have discovered some strange animals living in the woods behind their house. ben is excited because he believes they are marsupials, an animal he's never observed in the wild before. his brother is sure it is not. what feature should the boys consider in deciding whether the animals are marsupials?

Immigrants arriving in the united states during the late 1800s experienced many difficulties. which of the following was a problem which large numbers of immigrants faced?

During the late 19th century, russia's settlement and development of siberia was made possible by the invention of the