Question

—————— is a process in which a chemical substance changes because of the addition of oxygen. (a) Reduction (b) Oxidation (c) Emulation (d) Evaporation 2. The vibrational movement of atoms in the solid state is————. (a) Crystal Dynamics (b) Diffraction (c) Ultrasonic (d) Hypersonic frequency 3. A —————— is a machine for shaping metal or wood. (a) lathe (b) accelerator (c) burette (d) abacus 4. Which among the following do you consider as the most effective reading method to comprehend a text? (a) Skimming (b) Scanning (c) Intensive (d) Extensive 5. —————— is a type of elementary particle representing a quantum of light or other electromagnetic radiation. (a) Proton (b) Neutron (c) Photon (d) Electron 6. I am an extremely thin film of soapy water. Who am I? (a) Soap bubble (b) Foam (c) Snow (d) Dish washer 7. —————— is an action of coming to live permanently in a foreign country. (a) Immigration (b) Emigration (c) Malfunction (d) Insulation

Answer 1

Answer:

1 ans reduction

2 ans diffraction

Answer 2

Answer:

2. crystal dynamics

7. soap bubble