Class 10 Science and Technology Part 2 – Daily Revision MCQ (English Medium)
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According to the textbook, which organ is useless (vestigial) in human beings but is a useful, functional organ in ruminant animals?
Chapter 1: Heredity and Evolution
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Answer: D. Appendix
Vestigial organs are degenerated, useless organs; the appendix is useless to humans but fully functional in ruminants.In which phase of mitosis are all the chromosomes arranged parallel to the equatorial plane of the cell?
Chapter 2: Life Processes in Living Organisms Part 1
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Answer: B. Metaphase
In metaphase the nuclear membrane disappears completely and the fully condensed chromosomes line up parallel to the equatorial plane.Yeast, a unicellular fungus, reproduces asexually by which method?
Chapter 3: Life Processes in Living Organisms Part 2
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Answer: A. Budding
A small bud grows out of the parent yeast cell, receives one of the two daughter nuclei and separates: this is budding.What is a forest called that is protected by the local society in the name of God and considered sacred?
Chapter 4: Environmental Management
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Answer: C. Sacred grove
Sacred groves are sanctuaries conserved by society, not by the forest department; more than 13000 have been reported in India.In a hydroelectric power plant, which energy of the water stored in a dam is converted into the kinetic energy of the water?
Chapter 5: Towards Green Energy
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Answer: B. Potential energy
Water stored in the dam has potential energy; as it flows down to the turbine this becomes kinetic energy, which turns the turbine.Sponges have the simplest body plan and bear many pores called ostia and oscula. To which phylum do they belong?
Chapter 6: Animal Classification
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Answer: D. Porifera
Phylum Porifera: simplest body plan, called sponges, with numerous pores (ostia and oscula) on the body.Ethanol, a clean (smokeless) fuel, is obtained when yeast ferments which substance?
Chapter 7: Introduction to Microbiology
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Answer: A. Molasses from sugarcane
Saccharomyces yeast ferments sugarcane molasses to give ethanol, an alcohol that burns as a clean, smokeless fuel.Which of these is used as a biofertilizer to improve nitrogen fixation by crops?
Chapter 8: Cell Biology and Biotechnology
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Answer: C. Rhizobium
Biofertilizers such as Rhizobium, Azotobacter, Nostoc, Anabaena and the plant Azolla improve nitrogen fixation and phosphate solubilization.According to the textbook, which of these is an important characteristic of social health?
Chapter 9: Social Health
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Answer: B. Being able to change one's behaviour according to changing social conditions
The textbook says the ability to change one's own behaviour according to changing social conditions is an important characteristic of social health.The National Disaster Response Force (NDRF) has been established as per which law?
Chapter 10: Disaster Management
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Answer: A. Disaster Management Act, 2005
The NDRF was set up under the Disaster Management Act, 2005 to respond to disasters.
Class 10: MCQ in other subjects
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All questions are written by PadhaiNotes in our own words from the chapters of the official Maharashtra State Board Balbharati textbook (ebalbharati.in). Each question shows its chapter.