That’ll be the Nile river
Answer: The rock is 2000785 years old.
Explanation:
Expression for rate law for first order kinetics is given by:

where,
k = rate constant
t = age of sample
a = initial amount of the reactant = 800
x = amount of daughter isotope = 600
a - x = amount left after decay process = amount of parent isotope = (800-600) = 200
Half life is the amount of time taken by a radioactive material to decay to half of its original value.




The rock is 2000785 years old.
Pan Arabism is a political movement promoting the idea in which Arabs should unite in forming one country or a state. The idea was first done during 1800s in the later part and 1900s.If this stayed it would have led to greater unity for Arab and countries like Egypt and Syria could have stayed united which is the answer.
The Roma are typically treated bad because the people dont like them.....and that is because they are racist
Which question
You never put which one