StudyGK
Practice MCQs, News & Typing Tutor
प्रैक्टिस MCQs, समाचार और टाइपिंग ट्यूटर
Prepare for SSC, CGL, UPSC and more — daily GK practice
SSC, CGL, UPSC और अन्य परीक्षाओं की तैयारी — दैनिक GK अभ्यास
GK Practice
Typing Tutor
Dark
Physical environment conservation involves soil conservation, water harvesting, and what?
Afforestation
Only soil
Only water
Only air
Answer:
1