• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

ClearIAS

UPSC Coaching, Study Materials, and Mock Exams

Enroll in ClearIAS UPSC CoachingJoin Now Log In

Call us: +91-9605741000

  • ClearIAS
  • Guidance
    • How to Start?
    • UPSC Syllabus
    • UPSC Exam Eligibility
    • UPSC Age Calculator
    • UPSC Mentorship
    • UPSC FAQs
  • Courses
    • Online Coaching
    • Offline Coaching
    • Prelims Test Series
    • Mains Test Series
    • More Courses…
  • Test Series
    • Prelims Test Series
    • Mains Test Series
  • Coaching
    • UPSC Online Coaching
    • UPSC Offline Coaching
  • Study Materials
    • Free Resources
    • Premium Resources
  • What’s New
    • Blog
    • Syllabus Decoded
    • ClearIAS Notes
    • UPSC Books
    • UPSC PDFs
    • Demo Classes
  • Toppers
  • Login

Atheena Fathima Riyas: Author

Find out more about Atheena Fathima Riyas who is a content creator at ClearIAS.

Microplastics

Last updated on December 22, 2024 by Atheena Fathima Riyas

Microplastics

What are microplastics? How are they formed? What are their impacts on the environment? What are the various initiatives taken to reduce their negative impacts? Read further to know more. Large plastic debris can be broken down into smaller pieces to create microplastics. Microplastic has … [Read more...] about Microplastics

Salient aspects of Art Forms, Literature and Architecture from ancient to modern times

Last updated on April 29, 2024 by Atheena Fathima Riyas

art and architecture

What are the salient aspects of art forms, literature, and architecture from ancient to modern times? Read further to know more about it. Art forms can be broadly classified into three - (1) visual arts (2) performing arts (3) literary arts. Visual arts include architecture, sculpture, … [Read more...] about Salient aspects of Art Forms, Literature and Architecture from ancient to modern times

Separation of powers between various organs

Last updated on October 10, 2023 by Atheena Fathima Riyas

separation of powers

How is power separated between organs like the legislative, executive, and judicial branches of government? What are the checks and balances on the principle of separation of powers? Read further to know more. The separation of powers in the Indian polity is a fundamental principle that divides … [Read more...] about Separation of powers between various organs

Structure, organization and functioning of the Executive and the Judiciary

Last updated on September 3, 2023 by Atheena Fathima Riyas

executive and judiciary

The structure, organization, and functioning of the Executive and the Judiciary is a vast topic that should be covered in different parts. Read the article to know more about the Structure, organization, and functioning of the Executive and the Judiciary. India has a parliamentary system of … [Read more...] about Structure, organization and functioning of the Executive and the Judiciary

Major Rivers of the World

Last updated on August 30, 2024 by Atheena Fathima Riyas

major rivers of the world

Which are the major rivers of the world? What are the features and routes reversed by these majestic river systems? Which is the longest river in the world? What is the largest river in the world? Read further to learn the major river systems of the world listed according to continents. A river … [Read more...] about Major Rivers of the World

Tidal Energy

Last updated on August 13, 2023 by Atheena Fathima Riyas

Tidal energy

Although it’s been debated for decades, the topic of tidal energy has dominated the headlines of late. What is it, what benefits does it offer and what’s the potential for its future use? Where does India's Tidal energy potential lie? Read the article to know more about tidal power. India has a … [Read more...] about Tidal Energy

Five Kingdom Classification of Animals and Plants

Last updated on October 21, 2024 by Atheena Fathima Riyas

Five kingdom classification of animals and plants

The Five Kingdom Classification is a system of organizing and categorizing living organisms into five major groups or kingdoms based on their fundamental characteristics and evolutionary relationships. How are animal and plant kingdoms classified? What are the characteristics of the Five Kingdoms? … [Read more...] about Five Kingdom Classification of Animals and Plants

Evergreening of Patents

Last updated on March 20, 2024 by Atheena Fathima Riyas

Evergreening of Patent

What is the evergreening of patents? What does the Indian Patent Act mention about the evergreening of patents? Read further to know more. Patent evergreening is the technique of modifying medications to extend their patent period and hence their profitability. The Indian Patents Act of 1970 … [Read more...] about Evergreening of Patents

Directed Energy Weapons

Last updated on August 25, 2025 by Atheena Fathima Riyas

Directed Energy Weapons

What are Directed Energy Weapons (DEWs)? What are the impacts of  DEWs? Which are the current and upcoming Directed Energy Weapons projects of India? What are its advantages? Read further to know more. The development of Directed Energy Weapons (DEWs) is viewed as especially crucial in light of … [Read more...] about Directed Energy Weapons

Virtual Private Network

Last updated on October 11, 2023 by Atheena Fathima Riyas

virtual private network

What is Virtual Private Network? What are its types? What are the new regulations related to VPNs?What are the issues related to it? Read further to know more.  The directives issued to virtual private network (VPN) service providers by the Ministry of Electronics and Information Technology … [Read more...] about Virtual Private Network

  • « Go to Previous Page
  • Page 1
  • Page 2
  • Page 3
  • Page 4
  • Interim pages omitted …
  • Page 12
  • Go to Next Page »

Primary Sidebar

UPSC Coaching: PCM 2026

ClearIAS Course Image

Prelims cum Mains (PCM) GS Course: Unbeatable Batch (Online)

₹85000 ₹39999

Enroll Now

Anthropology Optional

ClearIAS Course Image

Anthropology Optional Subject Course for UPSC CSE Mains (Online)

₹50099 ₹29999

Enroll Now

Sociology Optional

ClearIAS Course Image

Sociology Optional Subject Course for UPSC CSE Mains (Online)

₹50009 ₹29999

Enroll Now

Psychology Optional

ClearIAS Course Image

Psychology Optional Subject Course for UPSC CSE Mains (Online)

₹50009 ₹29999

Enroll Now

PSIR Optional

ClearIAS Course Image

PSIR Optional Subject Course for UPSC CSE Mains (Online)

₹50099 ₹29999

Enroll Now

More Courses...

Congrats! You are at the right place - ClearIAS!

  • 1 million+ monthly users!
  • 9,00,000+ ClearIAS App Downloads!
  • 4,50,000+ Facebook Followers!
  • 3,50,000+ Email Subscribers!
  • 3,00,000+ Registered Aspirants!

Prepare for UPSC Online!

Join ClearIAS Now

Don't miss ClearIAS Study Materials!

UPSC Study Materials

UPSC Coaching

UPSC Test Series

UPSC Courses

UPSC Coaching Insights

What do toppers' say about ClearIAS?

Meera K IAS

"The ClearIAS platform is highly user-friendly. It is quite easy to revise mock exams on the ClearIAS mobile app. The explanations are short, crisp and clear.

I practised and revised ClearIAS online mock exams from my mobile whenever I got time. It really helped me in my prelims preparation. The all-India ranking helped me to analyse my performance at a pan-India level even before the actual UPSC exam. Thank you ClearIAS”

Meera K IAS

All India Rank 6, UPSC CSE

Know More

Admissions Open!

ClearIAS PTS Courses

Don’t lose out without playing the right game!

Follow the ClearIAS Prelims cum Mains (PCM) Integrated Approach.

Enroll Now

  • Prelims cum Mains
  • Prelims Test Series
  • Mains Test Series
  • CSAT
  • Current Affairs
  • More Courses…

UPSC Online Preparation

  • Union Public Service Commission (UPSC)
  • Indian Administrative Service (IAS)
  • Indian Police Service (IPS)
  • IAS Exam Eligibility
  • UPSC Free Study Materials
  • UPSC Exam Guidance
  • UPSC Prelims Test Series
  • UPSC Syllabus
  • UPSC Online
  • UPSC Books
  • UPSC Prelims
  • UPSC Mains
  • UPSC Interview
  • UPSC Toppers
  • UPSC Previous Year Qns
  • UPSC Age Calculator
  • UPSC Calendar 2026

ClearIAS

  • About ClearIAS
  • ClearIAS Programs
  • ClearIAS Fee Structure
  • IAS Coaching
  • UPSC Coaching
  • UPSC Online Coaching
  • ClearIAS Blog
  • Important Updates
  • Announcements
  • Book Review
  • ClearIAS App
  • Sitemap
  • Work with us
  • Advertise with us
  • Privacy Policy
  • Disclaimer
  • Terms and Conditions

Contact Us

  • Talk to Your Mentor
  • Contact Us
FacebookXYouTubeTelegramInstagramEmailLinkedIn

Featured on

ClearIAS Featured in The Hindu
ClearIAS Featured in the Times of India
ClearIAS Featured in the New Indian Express
ClearIAS Featured in the Yourstory

and many more...

Copyright © - ClearIAS.com

Submit your details to download the PDF!

UPSC Prelims 2025 Answer Key Download Form (#10)