Ocean curretns and sea currents

Question 1

what is the thermocline circulation?

Answer 1

Sea currents are driven by density differences of water cause by temp and salt differences

Question 2

Does warm or cold water have a higher density?

Answer 2

Cold water which causes it to sink

Question 3

Does salt or fresh water have a higher density?

Answer 3

Salt so it sinks

Question 4

Explain ocean current pattern:

Answer 4

-seawater warms at equator

-flows towards the north pole

-along the way ocean currents emits lots of heat which warms the atmosphere, cooling the water, water also evaporates so salt is left behind

-this causes density of water to increase so water sinks causing ocean circulation (ocean conveyer belt)

Question 5

What is a gyre?

Answer 5

circular ocean current

Question 6

How are gyres formed?

Answer 6

By trade winds