By people sailing or drifting from southeast Asia
Answer:
At convergent point of plate boundaries, sedimentary rock that is present at ocean floor is pushed down into mantle. Due to the continuous movement of rock into the mantle increase the crust the temperature. Thus after continuous rise of temperature, crust melts down and eventually rise to surface of earth in the form of volcanic eruption. and after cools down gives rise to formation of igneous rock.
Explanation:
Process of igneous rock is given below
At convergent point of plate boundaries, sedimentary rock that is present at ocean floor is pushed down into mantle. Due to the continuous movement of rock into the mantle increase the crust the temperature. Thus after continuous rise of temperature, crust melts down and eventually rise to surface of earth in the form of volcanic eruption. and after cools down gives rise to formation of igneous rock.
Answer:
Fewer methamphetamine labs are being operated and/or discovered in the United States.
Explanation:
Although it is difficult to establish a definite conclusion without more information, from what we do know there are few seizures of methamphetamine labs. This could be due to a reduced presence of attempted seizures, to an overall decrease in the number of labs, to more efficient means of hiding the labs from the authorities or to the increased importation of finished products from other countries.
