Weather and Climate

The map shows an air mass that formed over the Gulf of Mexico at location A.

Once air mass A reaches location B, the weather conditions at location B will most likely become

• warmer and drier

• warmer and more humid

• colder and more humid

• colder and drier

Earth's weather is primarily caused by

• drifting of Earth's crustal plates

• gravitational attraction of the Moon

• uneven heating of Earth's surface

• changing distance between Earth and the Sun

Which factor has the greatest influence on the distribution of the air-mass track?

• upper air currents

• ocean currents

• sea breezes

• mountain barriers

Which term refers to the atmospheric conditions that prevail from season to season and year to year at a certain location?

• weather

• climate

• equilibrium

• ecosystem

A sudden change in the weather at a certain location is most likely caused by

• the arrival of an air mass

• a severe earthquake

• a high ocean tide

• an eclipse of the Moon

A front is

• where warm air is cooling at earth's surface
• a line where hot and cold air are separating
• a line where two different air masses meet
• where cold air is rising and forming rain clouds

What characteristics are used to classify air masses?

• temperature and humidity
• pressure and temperature
• latitude and longitude
• wind speed and location 

The boundary between two air masses is known as:

• front

• storm

• climate

• flood

Which list correctly matches each instrument with the weather variable it measures?

• wind vane—wind speed
  thermometer—temperature
  precipitation gauge—relative humidity
• wind vane—wind direction
  thermometer—dewpoint
  psychrometer—air pressure
• barometer—relative humidity
  anemometer—cloud cover
  precipitation gauge—probability of precipitation
• barometer—air pressure
  anemometer—wind speed
  psychrometer—relative humidity

Which type of air mass most likely has high humidity and high temperature?

• cP
• cT
• mT
• mP