Which of the earth’s spheres is made up of the gases and air that surround the earth and sustain life? a. the hydrosphereb. the lithospherec. the biosphered. the atmosphere

D. the atmosphere

Explanation:

The hydrosphere represents all the water present in the planet. It can be in the form of ice caps also.

The lithosphere represents the outermost shell of a rocky planet. In the case of our own planet the lithosphere consists of the crust of the Earth and parts of the upper mantle.

The biosphere represents all the ecosystems present in a planet. It consists of all the life forms in the planet.

The gases present in a planet is called the atmosphere. The gases present on Earth's atmosphere are Carbon dioxide, Oxygen, Nitrogen and noble gases.

- measure reactants precisely. ( first choice)

- stir to the reaction take place. ( second choice)

- wait patiently until the reaction completes. ( fourth choice)

- make sure to recover as much copper as possible. ( last choice)

c.the charges if the proton and electron and gravity