Which of the following sets of characteristics describe what we know about the inner planets?
select one:
a. they are closest to the sun, have many moons, and include ring systems.
b. they are closest to the sun, have many moons, and include ring systems.
c. they have rocky surfaces, no rings, and few or no moons.
d. they have rocky surfaces, ring systems, and are larger in size.

The sets of characteristics describe what we know about the inner planets is that have rocky surfaces, no rings, and few or no moons. The answer is letter C. Also, they are smaller in sizes compared to the outer planets. The rest of the choices are characteristics of the outer planets.

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg