can someone answer 2 questions. The subject is science. Must be at least 200 words.

Question 1

At one time it was thought that the deep-ocean trenches at subduction zones would be a good place for disposal of high-level radioactive waste. Why is this not a good idea? Explain what can happen at a subduction zone and what might occur if the waste were buried there. (Hint: see oceanic-continental convergence.)

Question 2

How does the plate tectonics theory help explain the existence of fossilized marine life in rocks atop the Ural Mountains? Be sure to include a description of the specific process(es).

There is a 200 word minimum response required. text book Foundations of Earth Science Lutgens/Tarbuck/Tasa 

• Credible reference materials, including  textbook(s), may be used to complete the assessment.  (please list all)