General Science Quiz 122 (20 MCQs)

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1. Lithium (Li) in in Group 1 of the Periodic Table and has an atomic number of 3. Its electron configuration is 2.1 (2 electrons in the first shell, 1 in the second). Magnesium (Mg) is in Group 2 of the Periodic Table and has an atomic number of 12. What will its electron configuration be?
2. The moon has a lower gravity than on Earth
3. Who discovered the law of universal gravitation?
4. Rice husk is a biomass
5. Which part of the Moon is Chandrayaan-3 aiming to land near?
6. What molecule can leave the nucleus and go to the ribosome?
7. The long-term effects of pollution on the natural cycles of the Earth have been scientifically proven.
8. What is the original source of energy for most ecosystems?
9. A gas that is not confined tends to diffuse infinitely, increasing in volume and diminishing in density
10. Which planet is next to the Earth?
11. What is the boiling point of water in Celsius?
12. A chloroplast without cell wall is.....?
13. Exponent
14. A change where one or more new substances are created.
15. The lowest point on a transverse wave
16. In aerobic respiration the glucose is converted into
17. Which of these particles is NOT able to pass through a sand, gravel, and charcoal filter?
18. People can have both a positive and a negative impact on the ecosystem. Which action could have a negative impact?
19. Identify the colour pigment in flower petals
20. Soil formation begins with the weathering of.....