- Which is more destructive fire or water?
- What are two factors that cause convection?
- Is lower mantle solid or liquid?
- What is the source of heat in the mantle?
- What is the strongest disaster?
- Are tornadoes constructive or destructive?
- What is the special feature of the mantle?
- What is a destructive force?
- What causes convection inside the Earth?
- How do convection currents affect the Earth?
- What causes the thick materials to move in the mantle?
- What are 3 examples of destructive forces?
- What is the most destructive force of nature?
- What causes convection in the mantle?
Which is more destructive fire or water?
Fire is far more destructive than water.
For one thing, only direct contact with uncontrolled fire will kill anyone in just minutes after being covered in flames and smoke can kill almost as quickly.
And fire will damage and destroy many materials water usually won’t – such as steel and bricks and concrete..
What are two factors that cause convection?
Three factors contribute to set convection currents in motion:heating and cooling of the fluid,changes in the fluid’s density, and.force of gravity.The heat source for these currents is heat from Earth’s core and from the mantle itself.Hot columns of mantle material rise slowly.More items…
Is lower mantle solid or liquid?
Lesson Summary The lower mantle is the liquid inner layer of the earth from 400 to 1,800 miles below the surface. The lower mantle has temperatures over 7,000 degrees Fahrenheit and pressures up to 1.3 million times that of the surface near the outer core.
What is the source of heat in the mantle?
radioactive decayterawatts (TW) and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust, and the primordial heat left over from the formation of Earth. Earth’s internal heat powers most geological processes and drives plate tectonics.
What is the strongest disaster?
Ten deadliest natural disasters since 1900 excluding epidemics and faminesRankDeath toll (estimate)Event*1.400,000–4,000,0001931 China floods2.≥500,0001970 Bhola cyclone3.100,000−316,0002010 Haiti earthquake4.273,4001920 Haiyuan earthquake6 more rows
Are tornadoes constructive or destructive?
Volcanoes: Volcanoes are constructive because the volcano makes land when it erupts. Tornadoes: They are destructive becausewhen there is a tornado it will knock over buildings and destroy homes.
What is the special feature of the mantle?
The special about the upper mantle is its ability to flow like fluid. The upper mantle has soft weak layer called the asthenosphere, which capable of flowing. This property facilitates the movement of lithospheric plates.
What is a destructive force?
• A destructive force is a process that breaks down the surface features of the Earth. – Examples are: • Erosion (water-river and oceans and wind) • Weathering • Earthquakes • Volcanoes • Impact of organisms. 4. Erosion • Erosion is the movement of sediments and soil by wind, water, ice and gravity.
What causes convection inside the Earth?
Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.
How do convection currents affect the Earth?
Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat. … Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth’s crust.
What causes the thick materials to move in the mantle?
The movement is caused by the convection currents that roll over in the upper zone of the mantle. This movement in the mantle causes the plates to move slowly across the surface of the Earth.
What are 3 examples of destructive forces?
Some examples of destructive forces are volcanoes, earthquakes, erosion, weathering and glaciers. Destructive forces break down land and Earth.
What is the most destructive force of nature?
Tornadoes are some of the most destructive forces of nature. Learn how tornadoes form, how they are rated, and the country where the most intense tornadoes occur.
What causes convection in the mantle?
In Earth’s mantle, large amounts of heat are transferred by convection currents, as shown in Figure 10. Heat from the core and the mantle itself causes convection currents in the mantle. … Over millions of years, the great heat and pressure in the mantle cause solid mantle rock to flow very slowly.