Answer: Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells. The cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell.
A significant advantage of fossil fuels is their capacity to generate vast amounts of electricity in just a single location.
Fossil fuels are very easy to find.
When coal is used in power plants, they are very cost-effective. Coal is also in abundant supply.
Disadvantages of using Fossil Fuels
Pollution is a major disadvantage of fossil fuels. This is because they give off carbon dioxide when burned, thereby causing a greenhouse effect. This is also the main contributory factor to the global warming experienced by the earth today.
Coal also produces carbon dioxide when burned compared to burning oil or gas. Additionally, it gives off sulfur dioxide, a kind of gas that creates acid rain.
Environmentally, the mining of coal destroys vast areas of land. Mining this fossil fuel is also difficult and may endanger the lives of miners. Coal mining is considered one of the most dangerous jobs in the world.
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The chromatin undergoes further condensation to form the chromosome. ... A chromatid is either of the two strands of a replicated chromosome. Chromatids connected by a centromere are called sister chromatids
