40. Where in the passage does the author mention what has happened to the development of the mountains since they reached their highest point? (A) Lines 5-7 (B) Lines 10-11 (C) Lines 14-15 (D) Lines 19-20

41. What is the main idea of the passage? (A) Special techniques are needed to classify the huge amounts of data about Earth. (B) New tools provide information about Earth that was once impossible to obtain. (C) Advances in Earth system science have resolved many environmental problems. (D) Satellite remote sensing can show changes between two images taken years apart.

40. Where in the passage does the author mention what has happened to the development of the mountains since they reached their highest point? (A) Lines 5-7 (B) Lines 10-11 (C) Lines 14-15 (D) Lines 19-20

其他試題

40. Where in the passage does the author mention what has happened to the development of the mountains since they reached their highest point?
(A) Lines 5-7
(B) Lines 10-11
(C) Lines 14-15
(D) Lines 19-20