It desolves calcium carbonate causing plates to bend and faults to occur. Faults and plates moving cases the formation of caves.
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Answer:
Explanation:
A physical quantity which can be completely described by the magnitude and direction both are called vector quantities. For example, displacement, velocity, etc.
A physical quantity which can be completely explained by the magnitude only is called scalar quantity. For example, mass, time, etc.
Answer: 
Explanation:
Given
Charge discharged 
time taken 
Current is given as rate of change of discharge i.e.
Therefore, the average current is
The answer is A
Explanation: the conservation of matter means that the mass stays the same
