Atemperature of 273 k is the temperature at which water : a. boils. b. freezes. c. lacks any moving molecules. d. evaporates.

An air bubble of volume 20 cm³ is at the bottom of a lake 40 m deep, where the temperature is 4.0°c. the bubble rises to the surface, which is at a temperature of 20°c. take the temperature of the bubble’s air to be the same as that of the surrounding water. just as the bubble reaches the surface, what is its volume?

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot