How to Organisms Reproduce 1. Why do organisms reproduce?a) To maintain their body designb) To ensure species survivalc) To grow and developd) To obtain energyAnswer: b 2. What is the basis of variation during reproduction?a) Accurate DNA copyingb) Inaccurate DNA copyingc) Formation of identical cellsd) Environmental factors onlyAnswer: b 3. Why is variation beneficial to […]
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Control and Coordination What is the main function of the nervous system in animals?a) Digestionb) Control and coordinationc) Blood circulationd) ExcretionAnswer: b Which part of the brain is responsible for maintaining posture and balance?a) Forebrainb) Midbrainc) Cerebellumd) HypothalamusAnswer: c What type of receptors detect smell?a) Gustatory receptorsb) Photoreceptorsc) Olfactory receptorsd) ThermoreceptorsAnswer: c What is a
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Life Processes 1. What is the primary criterion to determine if something is alive?a) Ability to reproduceb) Ability to breathec) Presence of molecular movementsd) Ability to move visiblyAnswer: c) Presence of molecular movements 2. Viruses are often debated as living or non-living because:a) They lack oxygenb) They cannot move visiblyc) They show no molecular movement
Carbon and its Compounds What is the percentage of carbon present in the Earth’s crust?a) 0.02%b) 0.03%c) 2%d) 3%Answer: a) 0.02% Carbon achieves noble gas configuration by:a) Gaining four electronsb) Losing four electronsc) Sharing four electronsd) Donating four electronsAnswer: c) Sharing four electrons What is the atomic number of carbon?a) 4b) 6c) 8d) 10Answer:
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Metals and Non Metals Which of the following is the most malleable metal?a) Ironb) Aluminiumc) Goldd) ZincAnswer: c) Gold Which metal is a liquid at room temperature?a) Mercuryb) Sodiumc) Potassiumd) LeadAnswer: a) Mercury What property allows metals to be drawn into wires?a) Malleabilityb) Ductilityc) Conductivityd) HardnessAnswer: b) Ductility The oxide of which element is amphoteric?a)
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Consumer Rights What are consumer rights?a) Rules to protect producersb) Rights ensuring fair treatment for consumersc) Policies for seller profitsd) Guidelines for marketingAnswer: b) Rights ensuring fair treatment for consumers Why are rules and regulations important in the marketplace?a) To promote unfair practicesb) To ensure the exploitation of consumersc) To protect both buyers and
Globalisation and Indian Economy What does globalisation primarily refer to?a) International trade warsb) Integration of economies through trade and investmentsc) Political alliances between countriesd) Cultural exchange programsAnswer: b) Integration of economies through trade and investments Which type of corporation is central to the process of globalisation?a) Government-owned companiesb) Small local businessesc) Multinational corporations (MNCs)d) Non-profit
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Money and Credit What does the term “double coincidence of wants” refer to?a) The need for a common currencyb) Two parties needing each other’s goods at the same timec) The use of modern banking systemsd) The presence of collateral in credit arrangementsAnswer: b) Two parties needing each other’s goods at the same time How does
Sectors of the Indian Economy Which sector involves activities that directly use natural resources?a) Primaryb) Secondaryc) Tertiaryd) QuaternaryAnswer: a) Primary The cultivation of crops is an example of which sector?a) Industrialb) Primaryc) Serviced) QuaternaryAnswer: b) Primary The transformation of raw materials into finished products occurs in which sector?a) Primaryb) Tertiaryc) Secondaryd) ServiceAnswer: c) Secondary Which
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Development 1. Why do different persons have different notions of development? (a) Because people are identical(b) Because people are different(c) Because all have the same needs(d) Because life situations of persons are identicalAnswer: (b) 2. Which of the following is not a developmental goal? (a) Better wages(b) Social discrimination(c) Freedom and security(d) Respect for othersAnswer: