Which of the following is not a part of earth’s system? a. hydrosphere b. geosphere c. biosphere d. chronosphere

Answer : The correct option is (d).

Explanation:

Hydrosphere : It is portion or surface covered by water or fluid on the Earth. Such as : oceans, lakes , lakes, clouds etc.

Geosphere: It is a solid portion of the Earth system which includes substance found on interior side of the Earth like: rocks,minerals landforms etc. Basically it provides shape to outermost layer of the earth.

Biosphere: Regions of surface, atmosphere and hydrosphere of the Earth occupied by living organisms is known as biosphere.

Chronospere: It is mass teleportation device which can move object through space and time.

So, from all the above options chronosphere is not a part of the earth system. Hence correct option is (d).

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l

answer7,570,82356 cubic centimeters;