The answer is A them
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A gerund is a verbal that ends in -ing and functions as a noun. The one that contains a gerund functioning as a direct object is D.
I believe that the answer for this would be DESTRUCTIVE. The stream at the Karnala Bird Sanctuary, India is considered as destructive because it causes stream erosion. Both constructive and destructive processes are considered as part of the changes that occurs in the planet all the time. Hope this answers your question. Have a great day!
