How would you date a sample of rock that you suspect as being one of the earliest on earth?
a. use a radioactive isotope with a short half life
b. use a radioactive isotope with a long half life
c. use an index fossil
d. use a microfossil

Which of the following lists shows the events in the correct order? a.)the creation of the british raj, the sepoy rebellion, gandhi’s campaign of civil disobedience, the partitioning of indiab.) gandhi’s campaign of civil disobedience, the sepoy rebellion, the creation of the british raj, the partitioning of indiac.)the sepoy rebellion, the creation of the british raj, gandhi’s campaign of civil disobedience, the partitioning of indiad.)gandhi’s campaign of civil disobedience, the creation of the british raj, the partitioning of india, the sepoy rebellion