12 The main force acting on b. Gravily e Erosion d none of the above an unabered
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12 The main force acting on b. Gravily e Erosion d none of the above an unabered fossi? 13. Which of the following Amber entombment 14. The geologic time scale is evenly divided into eons and eras a True b False 15. If you have 1 gm of Carbon-14, after two half lives, you will have: a 0.5gm b. 1.5 gm c. 2.0 gm d. 025gm 16. You are a chicken farmer and a landslide takes out most of your chickens What ype of loss have suffered? Direct cost bIndirect cost c. Farmer's loss d KFC loss 17. The amount of time it takes for half of the unstable (parent) isotopes to decay is a. 46 billion years b. The half-ife c An arbtrary measune d. None of the above Use the figure to the right to answer ts 18-21 18. Which is older, A or C? 19. Which is older, D or C? 20. Which rock is the oldest? a. A d. D 21. What principle allows you to determine the relationship between A and C? a. Age of inclusions b. Superposition d. Faunal successiorn 22 What river has the largest discharge on Earth? a. Yangtzee b. Mississippi . Nile d. Amazon 23. Geologists are more concerned with sequence of events rather than precise dates given in years a True b. FalseExplanation / Answer
Answer 12: Gravity
Explanation: Gravity pulls the rock downward and due to continued downward force material become unstable and angle of repose( at which rock slide ) occur and we see a landslide.
ANswer 13: Amber entrapment
Explanation: some time Amber of trees preserves the organic material from decaying by entrapping it inside and save it from outer conditions.
Answer 14: No ( False)
Explanation: it divided into two main eons ( Precambrian & Phanerozoic) and only Precambrian comprise more than 80% of division, so not an even distribution.
ANswer 15: 0.25gram
Explanation: 1/2= 0.5 first half life
0.5/2 = 0.25 second half life
Answer 16: Direct loss
answer 17 : Half-life
anser 18: A
answer 19: D
answer 20: E
answer 21: cross cutting
answer 22 amazon
answer 23 true
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