Crop rotation?

a. improves soil fertility

b. shortens the growing season

c. has only been in use for a few years

d. is only worthwhile for small farmers

Coal, oil and natural gas are all classified as what type of resource? A) Consumable B) Nonrenewable C) Potential D) Renewable

Which gulf lies between arabian peninsula and somalia?

Why did Nixon want to travel to the People's Republic of China?

In us where do moderate temperatures typically occur?

What is the total volume of the ice sheet on antarctica in cubic kilometers?

What is the longest to river n texas

What's the difference between an escarpment and a cliff?

Where are most the world's migrants moving to? Where are they coming from?

How do oceanographers measure the salinity of ocean water? A. by measuring the density of the water B. by measuring the depth of the water C. by measuring the conductivity of the water. D. by measuring the amount of marine life present

The sun exerts a gravitational pull on earth. why doesn't earth fall into the sun?