To survive humans must maintain a normal volume and composition of

To survive, humans must maintain a normal volume and composition of the intracellular fluid, extracellular fluid, body fluids, and plasma.
These fluids basically the one that regulates what come in and comes out from the inside of our body. Without the existence of this fluids, human body will be soon experience organ failures

Their underlying asset beta is closest to is 1.08

Explanation:

According to the given data we have the following:

Debt is given as $78 billion

Equity is given as $142 billion

equity beta given as 1.68

Therefore, in order to calculate the underlying asset beta we would have to use the formula of the the equity beta for a levered firm as follows:

betaE =beta A [1 + (Debt / Equity)]

1.68 = \beta A [1 + ($78 B/ $142 B)]

1.68 = \beta A [1 + 0.5493]

betaA = 1.68 / 1.5493

betaA = 1.08

Their underlying asset beta is closest to is 1.08