23. The average number of years a person can expect to live when born in a specific area is known as a. life expectancy
C. crude birth rate
b. crude death rate
d. infant mortality rate

The yellow river is also known as the huang he river? true or false

The point where two air masses meet is called a

Computer models can scientists predict weather. some computer models can show the predicted path of hurricanes. what other events could a computer model warn us of? a) undersea earthquakes , tornadoes, and avalanches b) tornadoes c) avalanches d) undersea earthquakes