What can a drop of liquid mercury be described as?

Why is 1 g not equal to roughly 1 liter while 1 g equals 1000 mg and 1 liter equals 1000 ml ie why is 1 kg which equals 1000 g equal to roughly 1 liter should 1 gram not be equal to roughly 1 liter? Which characteristic is seen on maps of very large areas? What are the four critical elements of national infrastructure protection plan? Are brown paper bags biodegradable? When water in a beaker is heated bubbles come out to the surface why? Why should human beings stop burning fossil fuels? How can you balance a chemical equation using coefficients? What is wound up DNA called? Where are glands found? Where does the moist air that forms a monsoon over the North Indian Plain originate? How can volcanic eruptions lead to earthquakes? What is the name of the star nearest to the sun? Who first discovered the nucleus of the cell? How many atoms in 16 gram of CH4? Do threadworms live in your eyes and ears? What is the molar mass of a gas that takes three times longer to effuse than helium? Is sweat evaporating from your forehead a chemical change? What is most likely to gain an electron Sodium Carbon or Chlorine? Which one of the following steps occurs during the multiplication of animal viruses but not during the multiplication of bacteriophages? Does an optical telescope and a radio telescope of the same size have the same angular resolution?