While a 35-foot channel could accommodate a typical Panamax containership, post-Panamax I containerships handling above 5,000 TEUS require a berth depth above 42 feet. A depth of 50 feet is required to handle ships above 10,000 TEUs. 1 How deep does a cargo ship draft? 2 How deep is the hull of a
Read moreJust a few minutes in cold water makes it very difficult to swim or even to keep afloat. A thermal layer on the surface of the water can be deceiving. Under that initial layer can be temperatures of 50 degrees or colder. 1 How cold is water near an iceberg? 2 Can you
Read moreFor flowing water to freeze, the surrounding air has to be colder than 32°F, because the flowing water mixes with itself. So, the colder water on the surface mixes with the warmer water from the bottom, and the average temperature is somewhere between the two. 1 Can moving water be below 32 degrees?
Read moreWater is a liquid at room temperature, but becomes a solid (called ice) if it is cooled down. The same water turns into a gas (called water vapor) if it is heated up. The changes only happen when the substance reaches a particular temperature. 1 Can water be a solid liquid or gas?
Read moreJennifer Ouellette. Life on Earth began in the water. So when the first animals moved onto land, they had to trade their fins for limbs, and their gills for lungs, the better to adapt to their new terrestrial environment. 1 How did fish go from water to land? 2 What animal moves from
Read morePick up litter and throw it away in a garbage can. Blow or sweep fertilizer back onto the grass if it gets onto paved areas. … Mulch or compost grass or yard waste. … Wash your car or outdoor equipment where it can flow to a gravel or grassy area instead of a street. Contents
Read moreThe kidneys can regulate water levels in the body; they conserve water if you are dehydrated, and they can make urine more dilute to expel excess water if necessary. Water is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs. 1 What
Read moreThe ocean may change by shifting its current and wave patterns or by rising or falling in level. Rising or falling sea level affects coastlines simultaneously all over the world and so is the most important determinant of changes to coastlines. 1 How does water cause coastal erosion? 2 What can affect a
Read moreThere is a pronounced difference in temperature and salinity between the surface and deep zones of the Pacific. The deep zone, which contains about 80 percent of the ocean’s volume, has relatively stable temperature and salinity patterns; its average temperature is 38.3 °F (3.5 °C). 1 Why is the Pacific ocean cold? 2
Read moreHowever, temperature fluctuates naturally, so if you wish to increase the density permanently, you can add salt to the water. This increases the water’s mass without increasing its volume. Thus, its density increases. 1 What factors cause water density to increase? 2 How can density be increased? 3 How can you increase the
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