|Which of the following facts are not considered with respect to sea floor spreading?|
|1. Volcanic activity along the mid-oceanic ridges.|
|2. Stripes of normal and reverse magnetic field observed in rocks of ocean floor.|
|3. Distribution of fossils in different continents.|
|4. Age of rocks from the ocean floor.|
|Select the correct answer using the codes given below.|
A) 1, 2 and 4
B) 2 and 4
C) Only 3
D) All of these
Correct Answer: C
Solution :[c] Statement 1, 2 and 4 are correct with respect to the concept of sea floor spreading. Detailed analysis of magnetic properties of the rocks on either sides of the mid-oceanic ridge. The oceanic crust rocks are much younger than continental rocks. Statements is not considered with respect to sea floor spreading.
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