Two different samples of solid iron are shiny, can be made into wire, and can rust when exposed to water. Why do the two samples have identical properties? A) They are composed of different types of atoms. B) They are composed of the same type of atoms. C) They have different masses. D) They have the same mass.

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

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.