<span>The large bodies of water border the united states are:
</span><span>Atlantic Ocean, Gulf of Mexico, Pacific Ocean, Bering Sea and Arctic Ocean.
</span>United states have land border with two countries, Canada and Mexico.
<span>The United States of America has more than 12,000 miles of coastline which borders three major bodies of water that are, the Pacific Ocean, the Atlantic Ocean and the Gulf of Mexico. </span>
The answer is; 1, 2, 3, 5
El Nino involves very wet weather condions that cause extensive flooding. The floods of an El Nino can damage habitats, kill organisms and destroy most of the resources required to sustain an initial popualtion size. El Nino might also wipe out a large proportion of a population. This, therefore, wipes out a large proportion of alleles from the population. If the population was very small, there will be a dramatic shift in allele frequency since the small population left (with very low allelic variability) will have the responsibility of repopulating. This is called the bottleneck effect.
Groundwater is important for us as it is the greatest source for freshwater, crop irrigation and agricultural activities.
In general, groundwater is present in reservoirs and aquifers below the surface of the earth and also most crucial natural source of water for any nation. Groundwater provides fresh drinking water to almost 50% of global population. With an ever increase in global population, the use of groundwater is also increasing.
The primary way of wasting fresh water is its overuse in households such as in kitchen, toilets for taking long showers, washing and bathing purposes.
We can save groundwater by avoiding unnecessary leakage, unnecessary showers, and decreasing shower time.
If you need to learn more about groundwater click here:
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Answer:
There exists continental ans valley glaciers who ages have determined on the <u>basis of rock types and carbon datings</u>
Explanation:
- Glaciers were formed some 34 million years ago, in which first small glaciers were seen in Antarctica and that was 20 million years ago as the glaciers froze on to rocks and southern ice sheets were formed.
- The snowball earth existed from <u>2.4 to 2.1 billion years ago,</u> at that time Huronian glaciation i.e oldest ice age was built on earth having unicellular mass. As in the earlier phase, the snowball was completely frozen and 250 million years after the big volcanic activity that spread the carbon dioxide into the atmosphere and created the greenhouse gases.
- Evidence can be taken from the quaternary period of glaciation some 2.58 million years ago. As the ice sheets have gone through the multiple periods of growth and retreat as in the interglacial period the ice melted and retreated.
- Roughly about 41,000 million years ago the tilting of axis of the earth had a major effect on the ice sheets around the globe.
Answer:
GNI Per capita
Explanation:
Gross Domestic Product (GDP) is the total value of goods and services produced by a country in a year.
