Skip to content

Preparation Academy

  • Home
  • About Us
  • Contact us
  • PPSC Past Papers
    • ASSISTANT (BS-16) (12/02/2023) Agriculture Department
    • Assistant (BS-16) 12-03-2023
    • Assistant Administrative Officer 29-04-2023
    • Assistant Director (General Cadre) and Chief Municipal Officer (Morning)
    • Assistant Director Intelligence (BS-17) Punjab Police Department (Special Branch,Punjab)
    • Assistant Food Controller (BS-15) Food Department 30-04-2025
    • ASSISTANT SUPERINTENDENT JAIL PAST PAPERS
    • Club-69 ASSISTANT IN VARIOUS DEPARTMENT (BS-16) RELIGIOUS AFFAIRS DEPARTMENT PPSC (02-12-2023)
    • Combined Competitive Examination-2022 (PMS-2022) (BS-17) 4-06-2023
    • District Zakat Officer (BS-17) 0ctober 2023 Zakat And USHR Department
    • Food Grains Inspector (BS-12) Food Department (30-04-2023)
    • Junior Clerk (BS-11) Board of Revenue, Punjab – 2023 – 43J2022
    • Junior Clerk (BS-11) Punjab Public Service Commission 27-8-2023
    • Junior Clerk (BS-11) The Directorate of Land Records,Board of Revenue, Punjab-2023
    • Junior Clerk (District Rawalpindi) (BS-11) Board of Revenue (25-02-2023)
    • Junior Computer Operator (BS-12) Punjab Public Service Commission 27-08-2023
    • PPSC Assistant Director Labour Welfare (BS-17) Labour&Human Resource Department. Dated 15-01-2023
  • FPSC Past Papers
    • FPSC Assistant Director ASF 2014
  • Jobs Portal

The ozone layer is at height of __ kilometers from the surface of the Earth?

June 29, 2025 by Iqrar Khan

A. 10 to 20
B. 20 to 30
C. 30 to 40
D. None of these

Categories Sub Inspector (BS-11)-2021 Punjab Police Department (03.10.2021)
In how many generations a computer can be classified?
The basic architecture of computer was developed by

Subjects

  • GENERAL KNOWLEDGE
  • GEOGRAPHY
  • CURRENT AFFAIRS
  • HISTORY
  • COMPUTER SCIENCE
  • EVERYDAY SCIENCE
  • MATHEMATICS
  • ISLAMIC STUDIES

Past Papers

  • PPSC PAST PAPERS
  • FPSC PAST PAPERS

Top Categories

  • ASSISTANT (BS-16) (12/02/2023) Agriculture Department
  • Assistant (BS-16) 12-03-2023
  • Assistant Administrative Officer 29-04-2023
  • Assistant Administrative Officer 29-04-2023
  • Assistant Director Intelligence (BS-17) Punjab Police Department (Special Branch,Punjab)
  • Assistant Food Controller (BS-15) Food Department 30-04-2025

© 2025 STIP.PK. All rights reserved.