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Because there are deep-ocean trenches which are deep under water canyons.
Wiki User
∙ 12y ago
Wiki User
∙ 15y agoThe convection current travels downward when the rock material in the asthenosphere cools sufficiently to increase in density in relation to the surrounding material.
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Heat from the earth's interior causes convection currents in which layer of earth?
Convection currents in the magma drive plate tectonics.Heat generated from the radioactive decay of elements deep in the interior of the Earth creates magma (molten rock) in the aesthenosphere.
How can you get rid of ants on the kitchen sink?
Cover the sink with washing up liquid.
Can a shark sink a cruise ship?
No
What is loose lips?
Loose lips refers to someone who talks to much or tells secrets. It is usually used in a quote of "loose lips will sink ships" coming from the days when battle ship positions in times of war and if someone with 'loose lips' revealed the location of a battle ship the informaiton could get back to the enemy and they would attack the ship and possibly sink it if they were caught off guard.
Why are wadis dangerous?
they are dangerous because you might sink
Which layer of the earth is the place where convection occurs?
Convection currents rese and sink through the mantle and the liquid outer core. In Earth's mantle, large amounts of heat are transferred by convection currents. Heat from the core and the mantle itself causes convection currents in the mantle.
One hypothesis states that plate movements results from convection currents in the?
Earth's mantle. These convection currents are driven by heat from the Earth's core, which causes material in the mantle to become less dense and rise, and denser material to sink. This movement of the mantle material pushes and drags the tectonic plates along with it.
An increase in wind causes this current to increase What type of current is it?
Convection is the process that causes warm air to rise and cold air to sink. As such, the winds caused by this process are called convection currents.
What will happen to the convection currents in the mantle if earth's interior cools down?
Convection currents are transferring heat to the surface through the movement of mantle rock. If the interior of the planet cools, the mantle rock would be too solid to move, and there would be no heat to transfer.
Why do coffee grounds sink after adding cold water?
Induction of stronger convection currents is all i've got
Heat from the earth's interior causes convection currents in which layer of earth?
Convection currents in the magma drive plate tectonics.Heat generated from the radioactive decay of elements deep in the interior of the Earth creates magma (molten rock) in the aesthenosphere.
Convection currents form when warm air rises and cold air sinks What causes the warm air to rise and the cold air to sink?
a difference in density
Convection currents form when warm air rises and cold air sinks. What causes the warm air to rise and the cold air to sink?
a deference in density
Why are heaters best placed on the floor of the room?
Heaters are placed on the floor because of convection currents. Convection currents are the circular motion of air currents, caused by the simple fact that cool air is heavier than warm air. Thence, warm air rises. Heaters are placed on the floor to get the heat to people before the air cools down and begins to sink.
What are covection currents and what causes them?
A convection current is how either water or air cools and heats. The thing that causes them is the heating and cooling of air or water which makes it rise or sink.
Why do convection currents not occur in some components of the structure of the earth?
Convection currents can occur in either a gas or liquid medium but not in a solid medium (so you can have them in air, and you can have them in magma, but you can't have them in solid rock) and they only occur when there is a temperature difference, so that hotter, less dense material will rise, and colder, denser material will sink.
Define convection currents?
a heat energy traveling upward from the hot lower mantle to the cooler upper mantle
