The answer to your question is d :)
Answer:Nicholas Steno first formulated the principles that allow scientists to determine the relative ages of rocks in the 17th century. Steno stated that sedimentary rocks are formed in continuous, horizontal layers, with younger layers on top of older layers.
Explanation:
The answer is black holes. I hope this helps
Answer:
Congress can veto a proposal with a 2/3 majority vote of members in both the house in the senate.
Hope this helps! :D
