a thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions.
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.
The desert regions in China that are largely uninhabited are the Iner Mongolia region on the north of the country, and the Xinjiang region on the west of the country.
Saudi Arabia is a country that in most part is uninhibited and people are concentrated in the cities which are surrounded by desert and some partially from sea. The most uninhabited regions are Northern Borders, Jawf, Bahah and Najran.
The distribution of fold mountains, as seen in figure 1, are mostly located around areas of tectonic plates surrounding various continents. For example, the Pacific plate, which runs along North America contains a long region of folded mountains along the coast.
That's because the two countries have been really close and claiming that there's no "actual" difference between the two countries, and since Russia was in charge of Ukraine's territory,multiple times through history and is smaller, people called it Little Russia. hope it helps.
