Are compounds pure substance containing two or more elements that are chemically combined

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.