Sea floor spreading adds more crust to the ocean floor and at the same time older strips of rock move outward from either side of the ridge.
Answer: Because sand dunes protect inland areas from swells, tides, and winds, they must be protected and defended like national treasures. A strong and healthy beach dune is a powerful antidote against coastal erosion. The ocean and the wind can have an unpredictable, destructive force on coastal regions.
The negative impacts of radiation on a country's economy may include :
- Increased rate of mortality
- Destruction of food crops and cattles
- Environmental contamination
- Long term health complications
Radiation has proven to be very useful in medicine, power, defense and other sectors if adequately deployed. However, it's negative impact can also be overwhelming.
Some of the negative impacts of radiation include :
- Radiation could cause death thousand to millions of people within minutes. Such could result from bomb attacks or release of toxic nuclear substances into the environment.
- The effect of radiation does not only pose risk to life, it could also lead to destruction of crops and cattles. Causing famine and unquantifiable losses.
- Nuclear radiation may be so deadly that it renders several Radius or perimeter of an environment inhabitable. Such is the situation of Hiroshima and Nagasaki.
- Nuclear radiation often poses the risk of terminal diseases such as cancer upon exposure .
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Answer:
The correct answer is B. Brazil's second largest city is about one-half the size of the largest city of that nation.
Explanation:
The most populous city in Brazil is the city of Sao Paulo, located in the state of Sao Paulo in the southeast of the country. This city, located about 80 kilometers from the coast, is the most populous city in all of South America with about 12,200,000 inhabitants.
In turn, the second most populous city in this country is the city of Rio de Janeiro, located in the state of the same name, which is located about 400 km east of Sao Paulo. This city, located on the coast of the Atlantic Ocean, has a population of 6,500,000 people.
Answer:
- Reduced snow accumulations
- Earlier snowmelt in the Spring
- Spring flooding
- Less water in streams
- Reduced water availability
Explanation:
Less snow will fall in Winter due to the higher temperatures and, thus, will not accumulate. When there is less accumulated snow on the ground and the snowpack is thinner, then the snowmelt will occur earlier and faster in the Spring.
Quicker snowmelt in the Spring will result in rivers overflowing their banks because they cannot hold such a rapid influx of water. Rapid water cycle runoff will cause Spring flooding.
The snowpack will, therefore, be depleted early in the Spring season, and due to the earlier and faster snowmelt, there will be less water in the streams during the Summer.
The consequential lack of slow mountain snowmelt during the summer season will result in rivers flowing much less vigorously and with less volume over water. This means that downriver communities will face summer water shortages.
