What happened in chernobyl, ukraine, in 1986? a. the explosion of a nuclear reactor killed 30 people. b. deadly gases from a pesticide factory killed 20,000 people. c. the dam holding back a toxic waste retention pond failed, flooding 10,000 homes with benzene. d. uranium seeping out of a mine contaminated the water supply, causing radioactive poisoning in 30% of the city’s residents.

What type of electromagnetic radiation has a shorter wavelength than blue light

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.

The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?