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Ahill is made of rock particles of different sizes. which of these agents of erosion probably caused the hill to form?

Volcanic irruption is most likely to be violent when a) volcanoes near to the sea b) the neck of the volcano is sealed by a plug c) the lava is viscous d) the lava reaches the surface through a fissure e) the volcano is on the ocean floor

Which of the following is not a place where hydrogen can be found on earth? a. natural gas well b. atmosphere c. water d. mine