Seismic waves can scientists a. locate transform faults b. study the interior of earth c. place seismographs on earths surface d. distinguish between the forces of the epicenter of an earthquake

Scientists are able to learn about Earth's interior structure by measuring the arrival of seismic waves at stations around the world.

B. Study the interior of earth

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

vapour or gas assuming atmospheriv pressure