Question

How does a heater in one corner of a fish aquarium warm the whole aquarium? (1 point)

O The heater warms the glass of the aquarium, which warms the water.
O The heater creates convection currents, which transfer warmer water away from the heater and cooler water toward the heater.
O The heater warms the air above the aquarium, which warms the water.
O The heater adds thermal energy evenly to the aquarium's water.

Answer 1

The heater creates convection currents, which transfer warmer water away from the heater and cooler water toward the heater.

Step-by-step explanation:

When a heater is placed in one corner of a fish aquarium, it heats up the water around it. As the water around the heater gets warmer, it becomes less dense and rises to the top of the aquarium. This movement of warmer water creates a convection current, which transfers the warmer water away from the heater and towards the other areas of the aquarium.