Imagine that you have been called to an area where bones have been found. what would you do at this spot to you better understand what happened

Option B

Explanation:

With increase in atmospheric altitude , the density of the atmosphere increases which means the number of air particles per unit area reduces. Due to this change in density of atmosphere the pressure exerted by atmosphere also reduces.

When an helium balloon rises, the pressure inside the balloon is high while the pressure outside the balloon in low due to which the latex of the balloon tries to expand and hence the balloon burst eventually

Thus, option B is correct