Where did coal originate?

Is it true or false that some ecosystems can recover after a disturbance

A natural charge by an atom is caused by which of the following conditions? A.) presence of neutrons in the nucleus B.) balance in the number of protons and neutrons C.) balance in the number of electrons and protons D.

What is the name of the molecular compound that has the formula P2S5

Which factors affect the movement of the ocean currents? Select the three correct answers. A. The deployment of drifter buoys. B. The rotation of Earth's axis. C. The temperature of ocean water. D. The differences in water density.

Have you heard of the term barometric pressure? What does it mean?

What form of energy provides power for a gas stove? A. nuclear energy B. electrical energy C. chemical energy D. sound energy Can you explain the answer for me?

Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft*15.0 ft*8.60ft.

A certain ore is 34.4% nickel by mass. How many kilograms of this ore would need to dig up to have 30.0g of nickel?

Are the chemical reactions that take place when a battery connected endothermic or exothermic

What are 3 properties of carbon?