A. Smaller B. Negative C. Loosely bound D. All of the above The electrons can be removed from an atom with much lower energy as compared to a proton. In fact, according to the electron-sea model of metals, a metal consists of a large number of free electrons that are not bonded to any particular … Read more
A. Electrical energy B. Mechanical energy C. Kinetic energy D. Potential energy Water stored in a dam possesses potential energy and once the water starts falling, it has kinetic energy. When flowing water is captured and turned into electricity, it is called hydroelectric power or hydropower.
A. 1492 B. 1609 C. 1212 D. 1743
A. Mercury B. Sulphuric acid C. Chromite D. Quartz
A. Active volcano B. Extinct volcano C. Plateau in volcanic region D. None of these Mauna Loa, world’s largest mountain and volcano, is a archetype of a basaltic shield volcano in its late mature stage of life, and only about 600,000-1,000,000 years old. Although not erupting as frequently as its younger neighbor Kilauea, it is … Read more
A. Argon B. Chromite C. Mirage D. Diamond Chromite is important because it is the only economic ore of chromium, an essential element for a wide variety of metal, chemical, and manufactured products.
A. Landslide B. Eruption of volcanoes C. Tectonic plates D. All of these
A. Solid, liquid, gaseous B. Solid and liquid C. Solid and gaseous D. None of these
A. Carbon monoxide B. Carbon dioxide C. Lease particles D. Carbon particles Carbon monoxide is harmful when breathed because it displaces oxygen in the blood and deprives the heart, brain and other vital organs of oxygen. Large amounts of CO can overcome you in minutes without warning — causing you to lose consciousness and suffocate.
A. Aluminium Oxide B. Aluminium Chloride C. Aluminium Sulphite D. None of the above Hydrated aluminium oxide is the chemical name of bauxite.