Answer:
1 orbal.
Explanation:
There is only one orbital in the n = 1 shell because there is only one way in which a sphere can be oriented in space. The only allowed combination of quantum numbers for which n = 1 is the following. There are four orbitals in the n = 2 shell.
In a motor, the RATIO of output work to input work, expressed as a percentage, is the efficiency of the motor.
Answer : Ratio
I think the answer is hydrosphere
Answer:
A) Mechanical Weathering
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Explanation:
Mechanical weathering breaks rocks into smaller pieces without changing their composition. Ice wedging and abrasion are two important processes of mechanical weathering. Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface
