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Q: which geochemical cycle involves mantle convection
A: Heating from the Earth's core drives convection in the upper mantle. This convection is extremely slow; the speed with which material in the Earth's crust spreads from the mid-ocean.
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User: which geochemical cycle involves mantle convection

Weegy: Heating from the Earth's core drives convection in the upper mantle. This convection is extremely slow; the speed with which material in the Earth's crust spreads from the mid-ocean.
zaldy|Points 170|

User: which geochemical cycle involves mantle convection? nitrogen, tectonic, hydrologic, or carbon

Weegy: Tectonic
shifa saleheen|Points 9809|

User: which biogeochemical cycle is relied uon for plant photocynthesis? phosphorus, nitrogen, carbon, hydrologic

Weegy: Plant photosynthesis relies upon the hydrologic cycle.
Expert answered|debnjerry|Points 33049|

User: Which biogeochemical cycle has the least activity because the essential element is mostly stored in rock? phosphrus, nitrogen, carbon, or hydrologic

Weegy: Answer is the hydrological cycle
Expert answered|lovefallen|Points 959|

User: During the tectonic cycle, new, but recycled crust is created at _ and old crust is driven into the asthenosphere by _?

Weegy: Answer is oceanic ridges; a combination of the motion of seafloor away from the spreading ridge
Expert answered|lovefallen|Points 959|

User: Nitrogen is most abundent in the hydrosphere, atmosphere, biosphere, or cryosphere?

Weegy: Answer is Atmosphere. Nitrogen is the most abundant gas in the atmosphere: 78% of the Earth's atmosphere is nitrogen
Expert answered|lovefallen|Points 959|

User: Nitrogen cant be absorbed by the (lithosphere, cryosphere, hydrosphere, or biosphere) without the help of special bacteria and a process called nitrogen fixation.

Weegy: Answer is biosphere
Expert answered|lovefallen|Points 959|

User: A primary consumer would receive about (0.1, 90, 10, or 1 percent)of the original energy that enters an ecosystem from the sun.

Weegy: Answer is 10%- "Primary consumers only obtain a fraction of the total solar energy—about 10%—captured by the producers they eat. "
Expert answered|lovefallen|Points 959|

User: A plant retains about( 10, 90, 0.1, 1 percent) of energy from the sun. the rest is released as unusable heat energy.

Weegy: 10% "...into light and the rest (90 percent) is converted into thermal energy. (heat)"
Expert answered|lovefallen|Points 959|

User: Phosphorus is most abundant in the cryosphere, lithosphere, atmosphere, or hydrosphere?

Weegy: hydrosphere
Expert answered|lovefallen|Points 959|

User: The hawaiian Islands werent created at any of the plate boundaries. Instead, they were created from a subducted plate, a hot spot, or multiple earthquakes?

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Asked 6/25/2012 7:20:52 PM
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