Answer:
Unicellular organisms achieve locomotion using cilia and flagella. By creating currents in the surrounding environment, cilia and flagella can move the cell in one direction or another.
Explanation:
<h2>The correct" option is (d)"</h2>
Explanation:
- The correct option in the given statement is option (d).
- Radiation is a process in which the transfer of energy is in the form of heat, and light and is emitted from one object or material and transmitted through the surroundings and then absorbed by another medium.
- Radiation occurs when their is a difference between the temperature of two medium or phases.
Answer:
Iron, as well as iron alloys, rusts because of a chemical reaction known as oxidation. When iron is exposed to moisture or oxygen, oxidation occurs. During this chemical reaction, iron is converted into iron oxide