A mass of 200 kg is kept on the ground. If it covers an area of 1200cm². Calculate the pressure exterted by it. The depth of water in a pond in 5cm. Calculate the pressure exerted by water at the bottom of the pond. (density of water =1000kg/m³.

The pressure exerted by a cubical box of mass 50 kg and side 50 cm is equal to the liquid pressure in a vessel. If the density of liquid is 100kg/m³ , find the height of liquid. ​

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.