The mass of a meteoroid was found to be 1.24 × 107 kilograms. Write the mass in standard notation.

Which one of the following research methods can show cause and effect

Energy flows from the producer level to the level. is called

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.