Question
What activates a convection current, starting the flow of a fluid?
Question 1 options:
cold temperatures at the north pole
heated liquids at Earth's surface
iron-rich rocks in the mantle
temperature differences in the mantle
Question 1 options:
cold temperatures at the north pole
heated liquids at Earth's surface
iron-rich rocks in the mantle
temperature differences in the mantle
Answers
GPT-4o mini
The correct option that activates a convection current, starting the flow of a fluid, is:
**temperature differences in the mantle**
Convection currents are caused by the uneven heating of the fluid, leading to temperature gradients that cause the fluid to circulate. In the context of the Earth's mantle, hot material rises, cools as it reaches the upper layers, and then sinks again, creating a continuous flow known as a convection current.
**temperature differences in the mantle**
Convection currents are caused by the uneven heating of the fluid, leading to temperature gradients that cause the fluid to circulate. In the context of the Earth's mantle, hot material rises, cools as it reaches the upper layers, and then sinks again, creating a continuous flow known as a convection current.