Across
- 2. Helps in walking but wastes energy as heat.
- 4. — Known as the powerhouse of the cell.
- 6. — Bouncing back of light from a surface.
- 8. —Protection of computer systems from attacks.
- 9. — Software used to access websites.
- 10. — Step-by-step procedure to solve a problem.
Down
- 1. - Gas responsible for greenhouse effect mainly
- 3. — Process of converting data into secret code
- 5. — Opening in Earth’s crust that erupts lava.
- 7. — Negatively charged subatomic particle.