Someone please do the first 5 I’ve been trying for hours nothing comes up

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?