निम्नलिखित में से कौन सी विधि शरीर की प्राकृतिक गुहाओं (जैसे मलाशय या योनि) में ठोस या अर्ध-ठोस रूप में दवा देने की विधि है जहाँ यह पिघलती या घुलती है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?