The correct answer is - B. convection currents in Earth's mantle.
The movement of the Earth's tectonic plates is driven by the convection currents. The convection currents appear in the mantle layer, and they are currents made out of molten metals with high temperature and very high pressures.
Those high temperatures and pressures have resulted in cracking the crust on the surface of the Earth, thus creating multiple tectonic plates, some very large, some very small.
The pressure from the convection currents is so high that it actually manages to move the plates in certain direction, making them collide/subduct, slide past one another, or move away from one another, shaping up the physical geography of our planet.
More rarely, Ocean trenches can be formed when two plates carrying oceanic crust meet.The Mariana Trench,in the South Pacific Ocean,is formed as the mighty Pacific plate subducts beneath the smaller ,less dense Philippine plate.
There will be 6 left. Take 1000 divided by 7 you get 142 and some Numbers. Then 142 time 7 which gives you 994. That's how many you gave out. 1000 - 994 equals 6 that is left over.
The answer is D. northern canada
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The following are the subsystems that the atmosphere is interacting with, in each of the given examples:
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1. Water evaporates in the presence of sunlight: Atmosphere is interacting with the hydrosphere.
2. Volcanoes release a large amount of gases and other matter during eruption: Atmosphere is interacting with the geosphere.
3. Lightning causes nitrogen molecules to be split and carried by rain: Atmosphere is interacting with the geosphere.
4. Plants release water vapor through their leaves during transpiration: Atmosphere is interacting with the biosphere.
Explanation:
All the cycles functional in nature are only possible due to the eternal interaction taking place between the four spheres of Earth, viz.-
- I. Atmosphere (comprising of the envelope made up of all the gases surrounding Earth),
- II. Hydrosphere (comprising of all the water bodies present on Earth),
- III. Geosphere (comprising of the area covered by land),
- IV. Biosphere (comprising of all the life forms existing on the planet).
