Conservation and Management Quiz 1 (fully solved).

What is conservation protection and preservation an ecosystem or organism limiting human-caused damage Examples of Conservation restore damage (human or self made) Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:02 / 0:15 Full screen Brainpower Read More What is management? manipulation of people populations or habitat to meet specific goals and objectives Examples of management manipulation implies we will use energy including human energy or materials to alter the trajectory in a system state from what would naturally occur. Why are marine ecosystems important provide about 20% of animal protein 5% livestock 5% fish consumption in the devolving world What do humans get from marine environment Asia 1 billion people rely on fish as primary source of protein 250 million people employed worldwide what are some important ecosystem services Without we would have increased coastal flooding erosion of wetlands reduce water quality (oceans biological filter) increased beach closures (red tides) why do we think water is common? because it is all around us What are rain shadows? The molecular structure of water Proton Postive charge found in the nucleus Neutron Natural charge found in the nucleus Electron Negative charge found in the electron cloud What are Covalent Bond Sharing of electrons Two hydrogen atoms share their electrons with the oxygen atom Creates a stable water molecule Why is water polar? How does that allow for hydrogen bonding? because it has an equal negative and positive charge forms between the positive end of one water molecule and the negative end of another 5-10% as strong as covalent bonds What are the three unique properties of water? Solid (ice) Liquid (water) Gas (vapor, steam) Only liquid to occur in all 3 states naturally on earth More Unique properties of water --exists in 3 phases --good solvent--forms hydrogen bonds --high heat capacity Understanding of Celsius temp scale Subtract 32 degrees When it's Zero, it's FreezingWhen it's 10, it's NotWhen it's 20, it's WarmWhen it's 30, it's Hot! What is the latent heat of vaporization? Latent heat of vaporization is a physical property of a substance. It is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure What is the latent heat of fusion The energy needed for a substance to change from a solid to a liquid (melt) What is the general change in polar ice cover shrinking yearly by 12.6% result of global warming How is earth covered in ice different that covered with water? Why is water a good heat moderator? protect extreme tempertaure ranges on earth Where are the water reservoirs on Earth? Atmospheric moisture rivers and lakes ground water land and ice glaciers oceanic water and sea ice How is water important for the movement. of heat from the equator towards the poles? ocean currents transport warm water and precipitation from the equator toward the poles and col water from there poles back to the tropics What is a positive loop Postive loop acerbates a tempature rise What is a calorie? calorie is the amount of heat required to raise the temperature of 1gram of pure water by 1 degree Celsius What temperature is water most dense? 3.98 degrees Celsius Why does ice float? its less dense than water What are different ways in which density of water can be changed? by the state of matter Why is water so good at dissolving salts? bc it is a solvent What is the average salinity of oceans? between 33-37 or 35% What. uses salinity to be different in various geographical locations? he freshwater added at th