As the sun heats up the Earth, the water in the ocean, surface waters, and waters held by plants evaporates and turn into water vapor - very small particles that mix with the air. This process is called evaporation. During evaporation, the ocean is the biggest contributor of water vapor since it is the largest body of water. In the case of plants, water absorbed by the roots and distributed to the different parts also evaporates through the leaves in the process called evapotranspiration. This is why plants shed their leaves during very hot season to prevent water from escaping.
Water cycle The water cycle, also known as the hydrologic cycle, is the process by which water moves from place to place above, on, and below the Earth 's surface. This is the process by which water moves around the Earth to different places. The total amount of water on the Earth is relatively unchanging, and it has remained about the same since our planet 's formation. As the planet cooled, water vapor present at its formation condensed to fill the oceans and other places, like inland lakes and rivers. The distribution of water on Earth The Earth 's surface is 75% water and 25% land.
Air is provided tangentially over water surface with velocity between 6 and 20 m/s to mix and create 2 to 4 cm surface waves. After 10 minutes of mixing, the water is sampled from the point located 3 cm from the bottom and 2 cm from the wall of glass vessel. The sampling is done without stopping the airflow. The dispersed oil is extracted with methylene chloride and concentration is measured by absorbance in 580 nm light (Mackay, et al., 1978). It was found that, observed dispersion efficiency was highly sensitive to air inflow rate and angle of entry (Mackay, et al., 1978) (National Research Council, 1989).
The concentration of gases that can be dissolved into seawater from the atmosphere is determined by temperature and salinity of the water. As temperature and salinity increase the dissolution of these gases decrease. The important atmospheric gases found in seawater include: nitrogen, oxygen, carbon dioxide-in the form of bicarbonate HCO3-, argon, helium, and neon. Compared to the other atmospheric gases, the amount of carbon dioxide dissolved is large.
Assignmen#1 Title: Acidification of oceans Name: Attiqa Khaliq Father name: Muhammad Khaliq Roll no: 0061-BH-BIO-T-2014 Subject: Environmental Sciences Submitted to: Dr Faiza Sharif Government College University (Lahore) Acidification of Oceans For millions of years, Earth’s oceans have maintained a relatively stable acidity level. Research shows that a recent and rapid drop in surface pH that could have shocking global consequences through the distortion of the ocean’s acidity. Since the beginning of the industrial revolution fossil fuel-powered machines is used .The result of this industrial revolution has been the emission of tons of carbon dioxide (CO2) and other greenhouse gases into Earth’s atmosphere. The rapid growth in the use of fossil fuels has increased the amount of global carbon dioxide emissions.
Just as at sea, dissolved substances get left behind. We can see the effects of this clearly in water draining from soils. For example, at a site in northern England, analysis of rainwater and water draining from the base of the soil gave the following results: mg/ L = milligrams per litre The increase in concentration from rain to soil drainage is approximately the same for both Na and Cl at around two (i.e. 5.7/ 2.8 = 2.03 for Na; and 9.7/ 6.1 = 1.6 for Cl), and simply corresponds to half of the water molecules in the original rainwater being lost to the atmosphere by
This number is high because plastics durability, malleability and low cost results in more and more use in commercial and industrial goods(2). Also plastic is not biodegradable whereas other debris eventually degrades plastic just becomes smaller. All this plastic accumulates because most of it is not biodegradable as mentioned above and they wear down by photodegradation meaning they become tinier and tinier pieces(2). These tiny bits and pieces come in the oceanic environment and follow currents. Eventually leading to gyres which are giant system of ocean currents formed by wind and forces that result
Once they are in the rivers, they eventually make their way into our oceans. Another way we pollute the ocean is garbage. Garbage can take millions of years to biodegrade. So if we throw our garbage on the ground, it will make its way into our oceans. In the end, everything that is on the ground goes into our oceans.
ABSTRACK Biochemistry is the role of many molecule in chemistry reaction and processing in live creature. Fishery Biochemistry is the role of many molecule in chemistry reaction and processing in all of fishery. It is really important to study because we can know the contain in fishery which benefit to our body. Fishery Biochemistry discusses protein analysis. The methods used in Fishery Biochemistry protein analysis are material weighed 0,5 grams then boil to The Kjedahl 100 ml, add about 1 gram of a mixture of selenium and concentrated H2SO4 10ml, and then homogenized.