Kerala PSC Science Questions and Answers 21

This page contains Kerala PSC Science Questions and Answers 21 for psc exam preparations in Malayalam and English.

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401. ഓക്ക്,മഹാഗണി എന്നീ വൃക്ഷങ്ങളുടെ തൊലിയിൽ അടങ്ങിയിരിക്കുന്ന ആസിഡ്

Answer: ടാനിക് ആസിഡ്

402. മനുഷ്യൻ ആദ്യമായി ചന്ദ്രനിൽ ഇറങ്ങിയ വര്ഷം

Answer: 1969

403. _____ metal, regulates blood pressure in human body.

Answer: Sodium

404. . Tube feet are characteristic of—

Answer: Star fish

405. എവറസ്റ്റിന്റെ നെറുകയിൽ എത്തിയ ആദ്യമലയാളി?

Answer: സി. ബാലകൃഷ്ണൻ

406. The included angle is the sum of the :

Answer: .Chamber and SAI

407. The instrument which converts sound to electric signal is ______

Answer: Microphone

408. Total area of Vembanad lake

Answer: 205 sq.km

409. Ergosterol is the other name of which provitamin?

Answer: Provitamin D2

410. Who is considered as the father of India' foreign policy?

Answer: Jawaharlal Nehru

411. Persons working secretly to subvert a government or a party or an organisation from within

Answer: Fifth Column

412. For taking more copies on typewriter, we use

Answer: Carbon papers

413. Which option is used to insert ghosted text behind the content on the page?

Answer: Water mark

414. Which national highway joins Agra to Mumbai ?

Answer: NH 3

415. The blood cell associated with the resistance of diseases is

Answer: WBC

416. Mumps is a disease caused by?

Answer: Virus

417. Iodoform is commonly used as .....

Answer: Antiseptic

418. A jet engine works on the principle of conservation of?

Answer: Linear momentum

419. A form of carbon used in Gas masks?

Answer: Activated Charcoal

420. മദ്യം ബാധിക്കുന്ന തലച്ചോറിലെ ഭാഗം

Answer: സെറിബെല്ലം

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