What were four problems apollo astronauts faced when they landed on the moon? ? answer before 1: 20 pm !

Are the layers of rock above and below the coal older or younger?

The process of meiosis produces only gametes, eggs or sperm. according to the diagram, how many sperm are formed from each cell that undergoes meiosis?

Aquantity of gas has a volume of 18 m3 and an absolute temperature of 225 k. when the temperature of the gas is raised to 380 k, what is the new volume of the gas? (assume that there’s no change in pressure.)