Why did the ancient Egyptians build dams and channels?

to defend settlements from invasion

to make it easier to sail up the Nile

to better control flooding from the Nile

to enable people to cross the Nile to trade

True or false scientific words often come from Greek or Latin.

Identify one change that would cause increase in rate of stream erosion in the river valley in the mountains

A hertzsprung-russell diagram is used to show the relationship between a. absolute magnitude and apparent magnitude. b. temperature and absolute magnitude. c. parallax and temperature. d. apparent magnitude and parallax.

Which of the following best describes the environmental factors that promote the spread of malaria? a. rainfall, temperature, and humidityb. wind, temperature, and air pollutionc. sunlight, wind, and soil conditionsd.

Largest city in the world

In the united states and canada, the most common problem with using wood as a major heat source is

What is a type of air pollution

Who was the first person to calculate the circumstance of the earth and coined the word geography

What forms when a cold front overtakes a warm front?

Weres the apllaction mountain