Which systems involve convection currents? Cryosphere Hydrosphere Atmosphere Biosphere

## Step 1<br />Convection currents are a type of heat transfer that occurs in fluids, which include gases and liquids. These currents are caused by the movement of warmer and cooler fluid, which leads to the transfer of heat.<br /><br />## Step 2<br />The cryosphere, which is the frozen water part of the Earth system, does not typically involve convection currents. This is because the frozen state of the water does not allow for the movement of fluid that would lead to convection currents.<br /><br />## Step 3<br />The hydrosphere, which includes all the water on the Earth's surface, does involve convection currents. This is because the water in the hydrosphere is constantly moving and changing temperature, which leads to the formation of convection currents.<br /><br />## Step 4<br />The atmosphere, which is the layer of gases surrounding the Earth, also involves convection currents. This is because the air in the atmosphere is constantly moving and changing temperature, which leads to the formation of convection currents.<br /><br />## Step 5<br />The biosphere, which includes all the living organisms on Earth, does not typically involve convection currents. This is because the biosphere is not a fluid and does not involve the movement of fluid that would lead to convection currents.