निम्नलिखित में से कौन सा घटक पृथ्वी पर प्राकृतिक ग्रीनहाउस प्रभाव में सबसे अधिक योगदान देता है?

Which of the following territories was annexed by Lord Dalhousie under the pretext of misgovernance, and not directly through the Doctrine of Lapse?

What was the primary stated reason for the Partition of Bengal in 1905 by Lord Curzon?