Answer:
Scientists use waves to study the different layers of the earth. Usually, they use seismic waves, which are waves generated by earthquakes or nuclear-test explosions. The seismic waves are bent, sped up, or slowed down, or even reflected when they pass through the earth's layers.
Explanation:
Scientists are able to understand Earth's interior by studying seismic waves. ... Seismic waves travel at different speeds when they pass through different types of material, so by studying seismograms, scientists can learn a lot about Earth's internal structure.
Answer:
Seasonal Rains A. occur only during certain times of the year.
Explanation:
Seasonal rains occur more throughout April to September, while the winter is usually more dry. And as winter ends, more moist airs comes through.
Answer:
The economic effects were more significant than the social effects.
Explanation:
The social effects included the flooding of over 600 houses and the evacuation of 16 farms. Villages, such as Borrowbridge, were cut off, and power supplies, roads, and railways were also affected. The Bristol to Taunton line was closed at Bridgwater for instance. The environmental impacts were even worse though; an enormous volume of debris dumped by the floodwaters had to be cleaned up and stagnant waters had to be re-oxygenated before being pumped back into rivers. However, I think the worse impact of all was the contamination of all flooded areas by oil, agricultural chemicals, livestock effluent, and human sewage. I think that this is the worst impact because of its potential for causing harm to humans and other animals.
In conclusion, I think that the socio-economic and environmental effects of this flood were both important but that the environmental effect was more important, because of the potential to cause harm.
Answer:
Oxygen
Explanation:
The earth has been divided into three major categories crust, mantle, and core which are further segregated into sub-parts. Since the crust is the outermost layer of the shell, the outer crust of the earth consists of a combination of silicon and oxygen in the majority followed by some percentage of other metals as well. <u>The percentage of Oxygen includes nearly 50% i.e. 46.6% followed by 27.7% of Silicon and the other 25.3 % includes aluminum, iron, sodium, magnesium, etc</u>. Thus, '<u>oxygen</u>' is the correct answer.
