The color of a mineral when it is powdered is called the streak of the mineral. several minerals have a black streak and make it difficult to identify the mineral with the streak test alone. but a red-brown streak is not very common. we would expect to produce a red-brown streak.
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Geography, 23.06.2019 15:50, bigmouth804
A2 cm object is 10 cm from a convex lens that has a focal length of 4.4 cm, the image is 8cm from the lensz the height of the image, to the tenths place is
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