D.) "Natural disaster" is not a density depending limiting factor in an Ecosystem
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This is True . the reabsorption through the proximal tubule is obligatory 80% whereas water reabsorption through distal tubule is facultative but mostly through collector tubules 15 % ( under the action of aldosteron and antidiuretic hormone).
Moment magnitude estimates the amount of energy an earthquake releases and is derived from the amount of displacement along FAULT.