(a) vaccination is injection given to children to prevent from diseases
(b) Edward Jenner is the first scientist to prepare a vaccine
Sediment on the seafloor originates from a variety of sources, including <span>biota </span><span>from the overlying ocean water, </span>eroded<span> material from land transported to the ocean by rivers or wind, ash from volcanoes, and chemical </span><span>precipitates </span><span>derived directly from sea water. A very small amount of it even originates as </span><span>interstellar </span>dust. In short, the particles found in sediment on the seafloor vary considerably in composition and record a complex interplay of processes that have acted to form, transport, and preserve them.<span>
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Answer:
Storm surges, rising sea level, development along coastal areas.
Explanation:
A storm surge, which is also known as a storm flood, tidal surge, or a storm tide, is like a coastal flood, with rising water that is commonly associated with a few types of low pressure weather systems. During a storm surge, strong winds are produced which push water to the shore, causing flooding. These are a cause of coastal erosion because the high storm surges can shift the erosive force of a wave higher onto the beach. Rising sea level basically means there is an increase in the oceans, commonly caused by global warming. The Rising sea levels cause coastal erosion due to the ocean eroding the sand from the beaches. Development along coastal areas is a cause because as the sea level rises, waves at the higher elevation levels will increase coastal erosion.
Answer: It looks like this is a multiple choice question and if it is I would need to know what the choices are to be able to answer it correctly. I do know that the least populated country is Mongolia.
