Directions: A paragraph is given below which contains one or more errors in it. Read the paragraph carefully, find out how many errors are there in the paragraph and mark it as your answer.

"The study of climate change have revealed a complex interplay of natural and anthropogenic factors. The melting of polar ice caps are causing sea levels to rise. Furthermore, the frequency of extreme weather events are increasing. The impact of these changes on ecosystems and human societies are profound, and the need for global cooperation are urgent."