1. Speed of the wind is measured by______: Anemometer
2. ______ connects the muscle with the bones: Tendon
3. Polio is caused by a______: Virus
4. The coldest planet of the solar system is______: Neptune
5. ______ is a vitamin: Ascorbic acid
6. An eggshell is composed of______:
7. The most abundant element in the earth’s crust is______: Oxygen
8. The main constituent of biogas is______: Methane
9. Stalagmites are deposits of______: Calcium carbonate
10. Gigantism is the result of______: Hyper pituitarism
11. Monometer of proteins are______: Amino acids
12. Water transport in plants occurs within______: Xylem
13. Underground and horizontal stems are called______: Rhizomes
14. In the eye, only ______ contain receptors for light energy: Retina
15. Plant ______ control plant responses to environmental stimuli: Receptors
16. ______ is often called the power houses of the cell: Mitochondria
17. The rate at which a current changes direction is called its______: Frequency
18. The energy of electrons at the negative terminal of a battery is called______: Voltage
19. ______ is the smallest planet of the solar system: Mercury
20. Diamond is an allotropic form of______: Carbon