Physiological population density is viewed as a superior measure of population density for which of the following reasons?

Rivers of drainage system. option- 1 sao francisco 2 amazon 3 subarnarekha 4 uruguay

"water seeps into rock cracks and dissolved minerals there. the solution travels through cracks in the. eventually concentrating into large crystals." which process is that

What makes a personal exceptionality/non-exceptionality