The second one is push factors, the first one is pull factor, the fourth one is forced migration, and the third one is chain migration, hope this helps.
Main sequence stars burn through hydrogen
Answer: Pangea at the time was very cold because as we know today, South America is hot. If they have the same glacial deposits, that means it must have been very cold at one point of Earth's history.
The circumference is the length of the outer line of the circle. The formula is
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C = 2πr
C = 2 x 3.14 x 1.5
C = 9.43 km
Answer:
Desertification, nutrients in the soil, access to water, tools made for agriculture, location, climate, water pollution, the production of the food product, etc.
Explanation:
There are many factors that contribute in the decision making of food choices and the growth and production of food. In able to have a productive farm, some farmers choose to use many workers, some choose to use large tools, like tractors and irrigation systems. If there is not enough water getting to the farm, in some places like California, they will make a system or transport the water to the farm. Climate and weather also play a big role. If the climate does not supply the right resources to the plants, they will not be able to grow properly. Some climates are able to grow certain plants better than in other regions. The process of the food production affects how some make their food choices. For example, some people dislike how animals are treated and cared for before they are used for meat. Then, these people make the decision to not eat meat at all or from some companies that mistreat their animals. When their is water pollution near-by farms, farmers will struggle to grow their crops. When chemicals, from these polluted water sources, travel through the soil to the farms, the crops die or are harmed. In places like Africa, with dry climates, they use one plot of land for growing crops, then move to another plot the next year, because the nutrients from that plot were used all up for growing those plants. Sometimes, they even burn the weeds and shrubs after the harvest because it provides the soil with nutrients. This method is called slash and burn.
