WIND

What affects the density of water?

• Salt

• Temperature

• The seasons of the year

• Both A and B

Surface currents are mainly caused by

• The Coriolis Effect
• Cold and Warm Water
• Convection
• Wind

What causes wind?

• differences in air pressure

• ocean currents

• differences in density

• tropical currents

What causes warm air to rise?

• the fact that it's less dense than cold air 
• The fact that it weighs more than cold air 
• The fact that it has higher pressure than cold
• the fact that its more dense than cold air 

Warm, rising air creates areas of _____ pressure. Cold, sinking air creates areas of _____ pressure.

• low; high

• high; low