11. A small arrow or blinking symbol on desktop is called a _____.
(A) Palm
(B) Mouse
(C) Logo
(D) Cursor
Answer:
(D) Cursor
Explanation:
The moving arrow or blinking text symbol on a computer screen that indicates where the next action will happen is called a cursor.
12. _____ are attempts by individuals to obtain confidential information from you by falsifying their identity.
(A) Phishing scams
(B) Computer viruses
(C) Phishing trips
(D) Spyware scams
Answer:
(A) Phishing scams
Explanation:
Phishing is a type of social engineering where an attacker sends a fraudulent message designed to trick a person into revealing sensitive information.
13. The electromagnetic radiation most prevalent in the atmosphere is:
(A) visible light
(B) infrared
(C) ultraviolet
(D) radio waves
Answer:
(B) infrared
Explanation:
While sunlight brings visible light, the Earth absorbs this and re-radiates it as thermal radiation, meaning the most prevalent form of electromagnetic radiation trapped by the atmosphere (greenhouse effect) is infrared.
14. The ozone layer absorbs:
(A) ultraviolet rays
(B) radio wave
(C) infrared radiation
(D) microwaves
Answer:
(A) ultraviolet rays
Explanation:
The ozone layer in the stratosphere acts as a shield to protect Earth’s surface by absorbing the majority of the sun’s harmful ultraviolet (UV) radiation.
15. Project Tiger was launched in the year:
(A) 1973
(B) 1990
(C) 1989
(D) 1978
Answer:
(A) 1973
Explanation:
Project Tiger, a tiger conservation programme, was launched in April 1973 by the Government of India during Prime Minister Indira Gandhi’s tenure.
