To determine the relative age of rock layers 1-3, you could use the principle of

What's the weather like where you live?

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic

Look at the diagram showing the different wavelengths in sunlight. which statement describes electromagnetic waves with wavelengths greater than 700 nanometers? they take the form of heat. they can cause skin cancer and sunburn. they are some of the shortest waves. they can be seen by human eyes as visible light.