it was a period of a lifestyle that revolved around hunting and gathering agriculture. it was also known as the agricultural revolution. it begun about 12,000 years ago.
The answer would be that light can be reflected or refracted
The four phases of modernization proposed by economist Walt Rostow in 1960 are:
- "Pre-condition": or need for an improvement in the way a particular activity is being done in society.
- The "pre-condition takes off": Efforts targeted to assess this need start, including the production of raw materials and knowledge developments.
- "Take-off": Knowledge previously created during the latter phase is diffused and adopted by the masses.
- "Maturity": The development has reached a peak where it is common knowledge and the impact over society has already occurred.
Answer:
Population density is a measurement of population per unit area