Which of the following is true about charcoal?
a.
it is made by mixing carbon and clay.
b.
it has been a main medium used by japanese artists throughout history.
c.
charcoal is difficult to work with and expensive.
d.
there are two forms of charcoal that are popularly used.

Latin america's amazon rainforest provides many resources for the world's residents, including wood, water, and medicinal resources, as well as the oxygen processed by its many trees and plants. choose one resource and describe how it benefits the world. how would you protect this resource and future generations experience it?

Aschool principal ordered 1,000 pencils. he gave an equal number to each of 7 teachers untill had given out as many as possibe. how many pencils were left?

How do ocean currents affect temperature? check all that apply. they carry cold water from the poles to the equator and cool air over land. they flow north and then south below the equator. they flow south and then north above the equator. they move warm water from the equator to the poles and heat air over land. they move east to west and create prevailing winds. they move west to east and create seasonal winds.