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.
Answer:
Geographer uses a globe to answer regional questions by studying its exact and relative position with the help of latitude and longitude.
Explanation:
- Globe is simply a scale model of earth.
- With the help of globe, scale factor, latitude, longitude and direction a geographer can easily describe any place in the world.
- Geographers use map to solve problems, make comparison and answer any regional or global question easily.
- A geographer has the good knowledge of: location, place, human-environment interaction, movement, and regions which makes them able to answer any regional level questions using a globe.
The correct answer would be B. Nigeria
The correct answer for the question that is being presented above is this one: "2.) Plate tectonics, plate boundaries ." Plate tectonics cause earthquakes and volcanic activity at plate boundaries.
Here are the following choices:
1.) Fault lines, laccoliths
2.) Plate tectonics, plate boundaries
3.) Plate tectonics, the Ring of Fire
4.) Heat from Earth's mantle, fault lines