11. Combining of two nonmetal atoms by sharing one more pairs of electron is called:
A. Ionic Bond
B. Covalent Bond
C. Metal Bond
D. Hydrogen Bond
12. Which method may not be considered as a food preservation method?
A. Freezing
B. Irradiation
C. Sleeping
D. Pasteurization
13. What does RNA stand for?
A. Russian National Assembly
B. Ribonucleic Acid
C. Red Nitric Acid
D. Rubisco Nucleic Acid
14. Deficiency of iron in the human diet causes:
A. Hepatitis
B. Malaria
C. Anemia
D. Cholera
15. Which of the following is NOT a part of quantities used to discuss a computer memory?
A. Bit
B. Bite
C. Byte
D. Nibble
16. Which of the following cannot be considered as a renewable source of energy?
A. Wind
B. Petroleum
C. Solar
D. Geothermal
17. Which of the following may be said to be the most harmful radiation emitted by the Sun?
A. Infra-red
B. Visible Light
C. Ultra-violet
D. X-rays
18. COVID-19 is caused by:
A. Bacteria
B. Virus
C. Injection
D. Antidote
19. Which one of the following may be considered as a factor having influence on intelligence?
A. Dressing
B. Hereditary
C. Smiling
D. Reading
20. Which one is NOT a part of cell phone structure?
A. LCD
B. Battery
C. Water
D. Antenna