Large increases in the need for food led the Han Chinese government to encourage more intensive farming in the fragile
environment of the Huangtu Plateau. At the same time, new iron refining techniques produced better plows and other farm tools.
Iron smelting technology involved purifying and hardening iron in various kinds of furnaces.
What environment-damaging activity was partly caused by iron smelting?
A.
desertification
B.
terracing
C. deforestation
D. overgrazing

Hurry locate the iberian peninsula question options: 1 2 3 4 which number shows the location of italy? question options: 1 6 5 3

Aresearcher conducts a focus group to learn about attitudes towards hygiene and disease prevention. two weeks after the focus group, the researcher learns one of the subjects had a heart attack at home and was hospitalized, but made a full recovery. based on dhs regulations, the researcher report this event to the irb? no, this does not need to be reported since the subject had the heart attack when they were home, not at the focus group.no, this does not need to be reported since it is unrelated to participation in the study.no, this does not need to be reported because two weeks have passed.no, this does not need to be reported since the subject recovered.

At 3476 kilometer the moon's diameter is slightly less than the distance across from what