Chromosomes are found in the nucleusof animal and plant cells.
Answer:
Many Middle Eastern countries have been transitioning from largely rural living to urban living. City populations are growing quickly as people move to find jobs. However, environmental problems have come with this rapid urbanization. Many urban areas are experiencing air and water pollution. Air pollution is occurring due to the region's reliance on toxic energy sources, oil and gas. Oil and gas release emissions into the air when consumed by factories or cars. Cities are also experiencing water pollution issues due to a lack of waste treatment options. Without places to dispose of waste, people are dumping sewage and industrial waste into water sources. Finally, urban coastal areas are having problems with coastal degradation. Soil erodes and wildlife habitats are destroyed as land is changed for urban development.
Explanation:
Answer:
Natural Is better
Explanation:
Natural Chemicals are produced by nature without any human intervention. Synthetic may or may not be found in nature
<span>The answer is Due to heating of the air by the engine exhaust. Contrails are formed when the hot exhaust of the plane engines is rapidly cooled by the cold air in the upper atmosphere. The water vapor in the engine exhaust, formed in the combustion of fuel, freezes immediately to ice crystals due to the low pressure and -36oC temperatures in the 8000 m altitude in which the planes cruise. </span>
