An asteroid is falling toward planet Earth from space. It has a height of 100,000 km. As the asteroid falls closer to the Earth's surface, its energy decreases and its energy increases. A. chemical; heat B. gravitational potential; kinetic C. kinetic; gravitational potential D. heat; chemical

The clouds are grey and ground is wet. a quantitative b qualitative

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Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.