What can be used to determine the relative age of two rocks?
a. vertical position
b. the presence of unconformities
c. radioactive dating of each layer
d. the relative age cannot be determined.

Idon’t know how to solve this question

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)