Answer:
Hey there!
A population increase follows a period of scarcity.
With more people, the food and water resources get scarce, and isn't always enough for everyone.
Let me know if this helps :)
To protect our eyes from moisture and light. Example: from sweat. It can also reduce the amount of light that gets in your eyes and keep dirt away from them too.
We eat and drink to obtain the energy and matter we use to survive
Answer:
After an organism is buried, minerals carried by water such as silica, calcite or pyrite replace the organic material in the fossil. Some common examples are most dinosaur bones, petrified wood, and many trilobite fossils.
