Commercialisation led to growth of national agriculture and agricultural problem acquired national form. It brought about regional specialization of crops on an efficient basis. Commercialisation encouraged the production of some specific crop and favourably affected their distribution.
The correct answer is:
An understanding of the number and size of leftover planetesimals in the early solar system.
The giant-impact hypothesis proposes that the Moon was created out of what was left of a collision between Earth and an astronomical body the size of Mars, around 4.5 billion years ago, in the Hadean eon. The heavy bombardment was a period when leftover planetesimals hit planets during the solar system's first hundred million years.
The answer is the railroad increased commerce by making shipping easier and cheaper.
Answer: substance abuse treatment for parolees and probationers differs from treatment for people in jail or prison. Although their freedom is curtailed, they have greater access to drugs and alcohol than the incarcerated population, and hence more opportunities to relapse. Moreover, securing basic needs such as food and shelter is often of paramount importance, especially for parolees attempting to reintegrate into society.
After describing the population under discussion in this chapter, the text takes up levels of supervision and treatment. Next, the discussion provides a broad look at the services needed by probationers and parolees and examines the treatment issues that are specific to offenders under community supervision. The chapter then suggests strategies that are helpful in improving collaboration between the substance abuse treatment and criminal justice systems. Finally, the chapter presents descriptions of sample programs.