Introduction:
Physical geography is a branch of geography that focuses on understanding Earth's physical features and processes. It involves studying natural phenomena such as landforms, climate, vegetation, and hydrology. To grasp these concepts effectively, it is essential to find resources or websites that provide clear explanations and diagrams. Here are a few suggestions:

1. EduRev:
EduRev is an excellent resource that offers comprehensive study materials for various subjects, including physical geography. It provides detailed explanations, diagrams, and illustrations to help students understand different concepts. The website covers topics such as landforms, climate patterns, and weathering processes.

2. National Geographic Education:
National Geographic Education is a trusted source for learning about physical geography. Their website offers a wide range of resources, including articles, videos, maps, and interactive tools. These resources provide clear explanations along with visual aids to enhance understanding.

3. Geology.com:
Geology.com is primarily focused on geology, but it also covers many physical geography topics. It provides informative articles, maps, and diagrams related to landforms, rocks, minerals, and plate tectonics. The website's straightforward explanations and visual aids make it a valuable resource for understanding various physical geography concepts.

4. PhysicalGeography.net:
PhysicalGeography.net is a website dedicated to providing educational resources for physical geography. It offers concise explanations, diagrams, and interactive exercises covering topics such as Earth's structure, weather and climate, ecosystems, and landforms. The website also includes quizzes and study guides to test and reinforce understanding.

5. BBC Bitesize Geography:
BBC Bitesize Geography is a popular educational website that covers a wide range of geography topics, including physical geography. It offers clear explanations, diagrams, and videos to help students grasp concepts effectively. The website provides interactive quizzes and revision materials to assess knowledge and aid in exam preparation.

Conclusion:
When studying physical geography, it is crucial to have access to reliable resources that provide clear explanations and diagrams. Websites like EduRev, National Geographic Education, Geology.com, PhysicalGeography.net, and BBC Bitesize Geography offer comprehensive and visually appealing content to enhance understanding. These resources can be valuable tools for students preparing for the UPSC exam or anyone interested in learning about physical geography.