er 70% of the Earth’s surface. This means that there is a greater opportunity for salt water to be evaporated versus freshwater since it is less common. Also, freshwater is on land while salt water is in “desert” basically so it is going to be cooler on land most of the time. A common misconception is that evaporation occurs at the same rate but that is false. Even though saltwater contributes most of the evaporated water, it does not evaporate as fast as freshwater. Fresh water evaporates much faster because of what it is composed of unlike saltwater. Salt water obviously has salt and that is a component that is usually not evaporated. This problem slows down evaporation because the salt molecules are locked into the water molecules and it takes longer to separate them. This shows how much saltwater there is because fresh water evaporates very fast yet there is not enough of it to even compare to how much salt …show more content…
The reasoning for this is that water can easily absorb heat and it takes a longer time for that heat to be released from the water. Coastal regions receive a breeze during the day due to pressure but at night the ocean receives the breeze. These changes from day to night are not just because of the water, but the land too. Land also absorbs heat easily but at a much faster rate than water. However, land loses the heat extremely fast meaning the difference in temperature is much more extreme than in the water. If the Earth’s land was composed of only 25% water, then the temperature would be much higher. The temperature will increase because there will not be as much water to “hog” all the heat up. Another terrible thing that will happen is that the water cycle would get messed up badly due to lack of water for
On Wednesday, February 15th, I was able to have the opportunity to listen to Andrew Lipman. Andrew Lipman is the author of The Saltwater Frontier: Indians and the Contest for the American Coast. In the novel, he explained the life of Native Americans living in New England and on the coast of Long Island. During this time, most individuals relied on trading natural resources. In order for profit for the resources, the colonists and Native Americans used wampum. Wampum was used as a sacred gift in Native American culture as a peace offering, funerals and marriages. Colonialists had an advantage towards using wampum. They used beads as a commodity for furs. Native Americans relied on canoes for transportation. Canoes can hold up to fifty people.
Water is the most relied upon resource on earth and if it disappeared life could not and would not exist on this planet. So if one of our main sources of water in South Australia, The Murray Darling-Basin, becomes unusable then we would need to find the problem and do everything possible to stop it or counteract it. This report investigates on salinity in the Murray Darling-Basin, using the issue question “Is there enough being done to counteract the effects of salinity in the Murray?” as the focus. Salinity is a key significant environmental challenge which the Murray faces and if left unmanaged it could cause serious implications for water quality, plant growth, biodiversity, land productivity, infrastructure and could lead to a loss of a water source that’s critical to human needs. In this investigation five different aspects of this salinity issue are presented and these aspects include what Salinity is and how it has become an issue, what the effects are, how salinity affects the rest of Australia, what can be done and is anyone doing anything and finally what the visions are for the future of the Murray and its salinity levels.
2) (reasoning) In Source B it talks about brackish water, water that has salt but is still drinkable and usable for growing crops, but it's not the best for it.
There are numerous stages that take place simultaneously in the hydrologic cycle and this includes evaporation. This is when the water alters from a liquid state into a gas. The damp air from the water rises into the atmosphere and when it cools, the vapor condenses and shapes into clouds. But those billows are not the only form the vapors make; it can also materialize as dew, fog and mist, which blanket the Earth, characteristically on a rainy or humid day. Evaporation takes place when water changes from a liquid state into a gaseous state, and ascents out of the pores of the earth and into the atmosphere as a vapor (“How”). While evaporation is taking place, condensation is also occurring. When the temperature in the air plunges, the clouds become heavy and as a result they relieve themselves of the extra weight, which is called precipitation. This produces rain, hail, snow and sleet, conditioned upon the temperate. As the precipitation falls, it enters the surface of the ground and percolates into the soil, which is called infiltration. The more porous the land is, the more the infiltration can take place. However, the ground cannot hold all of that water and floods. The excess rainfall, which is also called runoff that has not been absorbed makes its way into bodies of water, such as small ponds, rivers, lakes and parts of the ocean (“Summary”).
Change in water temperature changes the places where grasses are able to grow, when fish and crab feed, reproduce, and migrate ("Chesapeake Bay Program"). The temperature in the bay goes from high in the summer to very low in the winter. During summer, the surface water is warmer than the deeper water, which creates two different temperature layers that actually separate surface waters from deeper waters (“Chesapeake Bay Program”). The temperature layers change the summer dissolved oxygen levels.... ...
Surface current are found in the upper four hundred meters (400m) and makes up about ten percent (10%) of ocean (Briney, n.d.). Surface ocean currents are as a result of friction between the water and atmosphere interface. The wind exerts a force or stress to the ocean surface and causes the water to move. The winds that most affect the oceans’ currents are the Westerlies which produce belts of ocean currents that flow east in the mid-latitude and the Trade winds which generate currents that flow to the west in tropical latitudes. These winds are mainly a result of warm air from the tropics moving towards the poles. The direction of the current is not the same as the direction of the wind but it is deflected at a forty five degree angle. This deflection is resulted from the earth’s rotation on its axis called the Coriolis force/ effect. Coriolis force and constrains by continental land masses cause surface currents to develop into an alm...
Oceans cover around seventy percent of the Earth’s surface. The oceans of the world have a direct relationship with weather and climate – they influence the weather both locally and globally and the changes in climate in exchange have an affect on properties of the oceans. Changes that occur to the ocean for the most part occur over a much longer period than in the atmosphere. Even if carbon dioxide emissions were to be stabilized today, it would centuries for oceans to adjust to the changes in the atmosphere. When greenhouse gases trap more energy for the sun, oceans then absorb more heat; and in turn there is a rise in sea surface temperatures as well rising sea levels. Oceans do help to reduce climate change due to the fact that they
The currents at the surface of the ocean are split in to two categories, tidal currents and surface currents. Tidal currents occur around land masses and are influenced mainly by the gravitational pull of our sun and moon. They change rapidly but predictably and contribute to surface currents. Surface currents occur over different areas of earth’s ocean. Two main factors affecting the surface currents are wind and the Coriolis Effect. The Coriolis Effect explains how the rotation of the earth seems to cause a deflection of anything moving above the earth’s surface. It is this effect that causes winds and water in the northern hemisphere to appear to deflect to the right and in the southern hemisphere to deflect to the left. One of the major surface currents is the Gulf Stream. Water in around the Caribbean is warmed by the sun and then carried north and east along the coast North America. These sun warmed waters release their stored energy into the westerly winds and Northern Europe benefits by having a much milder winter than t...
It will change the water cycle due to warmer temperatures. Some areas will get more precipitation and storms, while others will get nothing and have serious droughts. Warming to a few degrees will cause glaciers to melt and sea ice to melt, leading to a lot of damage. This damage would lead the levels of the oceans to rise and would cause damage to coastal cities and islands. This would cause serious problems for the different species living in the oceans and could cause some disease.
There is a global shortage of drinking water. A person might wonder how this can be if seventy percent of the earth’s surface is covered by water. Most of the Earth’s water is unsuitable for human consumption. Ocean water is salt water, which makes up 97.5% of all water on the planet. Freshwater is only 3.5% of all the water on Earth.
Water is on of the most precious natural resources that exist on our planet. “It is delivered from the atmosphere in the form of rain, snow, hail, fog, and condensation and returns to the atmosphere by evaporation and transpiration” (Hannigan 1969). Although many of us love activities that have to do with water, we disregard it and pollute out rivers, lakes and oceans. Slowly but surely we are going to harm out planet till no return. Protecting and conserving nature will secure a better future. 71% of earth is covered with oceans. Sounds like a lot right? Imagine ...
The greenhouse gases are those that absorb the Earths radiation and thus contribute to the greenhouse effect, but water is also a major absorber of energy. Where there is an increase in the concentration of greenhouse gases (as with CO2 due to the burning of fossil fuels) this results in an enhanced greenhouse effect - which is of concern as it could lead to climate change (i.e. global warming).
the earth will cause the oceans to become warmer. When they heat up, more water is evaporated,
Soft water and hard water are common terms used in households .Most of Earth's water (97%) is in the ocean. Seawater has unique properties: it is saline, its freezing point is
Water is an irreplaceable natural resource on this earth which comprises marine, estuarine, fresh water (river and lakes), ground water across coastal and inland areas. Even though there is huge water resource in this world, about 97% of water is salt water (marine) only 3% is fresh water. And in this small fraction of fresh water a major part is in the form of ice in polar region. So just 0.003% is in the form of ground water and surface water which we can use.