Answer:
The correct answer is A. Fossil fuels are cheaper than alternative forms of energy
Explanation:
Fossil fuels are made from organic matter of dead animals and mainly plants who were buried in the soil over hundred and thousand of years. We use fossil fuels because they are the best source to provide energy in the current time.
Fossil fuels are easily available and are present in very large amount which is the main reason for it to be cheaper. Fossil fuels like coal, petroleum or natural gas are more cheaper and efficient than alternative forms of energy like solar or wind energy.
But in future these fossil fuel will not be there and alternative forms of energy will become the primary and cheaper source of fuel.
Answer:
Explanation:
About 2 million fractures occur each year due to osteoporosis. Although all bones can be affected by the disease, the bones of the spine, hip, and wrist are most likely to break.
What brought the beginning of the earth
<span>A rainforest is an example of a community. A community refers
to the interaction of various species within a common geographic location.
Communities are also known as biological communities, where species interact
and co-exist with another to thrive and survive their given environment. </span>
Answer:
Chromosomes are like a ball of yarn in the sense that there are multiple components that make up the structure. Genes can be in similitude of the smallest threads in the yarn and when a multitude of genes are put together they make a DNA strand or a long, thick thread of yarn. Lastly, when DNA is twisted together, it becomes bundled together, making a chromosome or a "ball of yarn".
Explanation:
