Answer:
because of the use of oil and fossil fuel and the improvement of inventions
Explanation:
Mitosis
because the cell split into two identical copies!
Answer:
Crop rotation
Explanation:
Plant obtain nutrients from the soil. Plantation of crops in soil depletes nutrients from the soil. Crop rotation is one of the methods used for maintaining the nutrient levels and thereby, the productivity of the soil. Crop rotation includes plantation of different crops in the same field. For example, farmers plant legume crops after the non-legume crops. Leguminous plants have Rhizobium bacteria in their root nodules. These bacteria fix nitrogen and restore the lost nitrogen from the soil.
Homeostasis refers to the notion that the body monitors and maintains internal states, such as body temperature and energy supplies, at relatively constant levels. It is any process in any living organism which is responsible of maintaining stability in the body by adjusting or adapting to any changes in the outside conditions. For example, the human body would tend to maintain a temperature internally of about 98.6 degrees Fahrenheit regardless of what is the temperature outside the body. So, if the outside temperature is hotter, then certain process in the body would try its best to regulate the temperature inside and maintain the recommended level.