The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made? (1 point)
• The air holds little water vapor and is relatively dry.
The temperature must rise in order for air to become saturated with water vapor.
• The amount of water vapor in the air is 90% of what the air can hold.
• The dew point temperature is 90% of the air temperature.
The amount of water vapor in the air is 90% of what the air can hold.
A forecast indicates a dew point temperature equal to the air temperature. What does this information imply? (1 point)
• Relative humidity is 100%, and it may rain.
• Relative humidity is 0%, and it may rain.
• Relative humidity is 0%, and there is no chance of rain.
• Relative humidity is 100%, and there is no chance of rain.
Relative humidity is 100%, and there may be a chance of rain.
Which is correct about how air typically moves? (1 point)
• Air moves from high-pressure areas to low-pressure areas.
• Air moves from low-pressure areas to high-pressure areas.
• High-pressure air moves on top of low-pressure air.
• High-pressure air and low-pressure air move alongside each other.
Air moves from high-pressure areas to low-pressure areas.
Which air mass would form over warm water? (1 point)
maritime polar
• continental tropical
• continental polar
• maritime tropical
Maritime tropical.
A new air mass moves into an area. Which will most likely occur? (1 point)
• The warmer air mass rises, and there will be clouds and rain.
• The colder air mass rises, and there will be clouds and rain.
• The warmer air mass rises, and there will be sunshine and a clear day.
• The colder air mass rises, and there will be sunshine and a clear day.