The inner core is mainly made up of hot metals
The use of chemical fertilizers in agriculture in the last few decades has led to a marked increase in agricultural production. The addition of chemical fertilizers to crops ensures that plants receive the correct formulation of nutrients that are necessary for growth. Plants will mature faster and produce more when this is done. Fertilizers also enable the use of agricultural lands to be ongoing as there is no need to rest the soil to allow nutrients to naturally build up. Growing can, therefore, be continuous all year round, leading to increased production.
Differences between Indus, Nile, and Yellow river valley civilizations are (please refer the attached image)
Learn more about the Indus, Nile, and Yellow valley civilizations here:
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Explanation:
people migrate to urban areas because
Poor living conditions and the lack of opportunities for paid employment in rural areas are push factors. ... Young people are more likely to move to towns, with more elderly people and children left in rural areas. Selectivity in migration affects the population in both the rural and the urban areas.
Answer:
the option that does not describe an opinion is, they can be proven true or false.
Explanation:
opinions are not based on factual evidence, they're personal views and beliefs; therefore, they cannot be proven true or false.