Why are energy transfers not 100% efficient? The second law explains why energy transfers are never 100% efficient. Because ecological efficiency is so low, each trophic level has a successively smaller energy pool from which it can withdraw energy. This is why food webs have no more than four to five trophic levels. How can […]
How does the voice show work?
How does pollution play a role in greenhouse effect?
How does pollution play a role in greenhouse effect? Some air pollutants cause the climate to warm. Greenhouse gases prevent some of that heat from leaving the atmosphere. The recent increase in greenhouse gas pollution is trapping excess heat and causing the climate to warm. Air pollution includes greenhouse gases such as carbon dioxide. What […]
How important are energy resources to a human?
How important are energy resources to a human? As the rate of energy consumption continues to grow, competition for dwindling energy resources only makes it more difficult and expensive to keep up the same levels of consumption. One of the reasons that energy resources are so important is that they make it possible for a […]
Why is relative frequency important?
Why is relative frequency important? Relative frequency histograms are important because the heights can be interpreted as probabilities. These probability histograms provide a graphical display of a probability distribution, which can be used to determine the likelihood of certain results to occur within a given population. What is relative class frequency? In a relative frequency […]
Is sulfuric acid a binary compound?
Is sulfuric acid a binary compound? It is element stem + “ic acid” (or “ous acid”). This gives names like sulfuric acid and nitric acid. The “hydrogen name” is formed as if the substance were an ionic compound. So the name would be hydrogen sulfate, but that name is hardly ever used. Is hydrocyanic acid […]
Who described the shape of the earth?
Who described the shape of the earth? Isaac Newton What is an oval sphere called? prolate. A spheroid, or ellipsoid of revolution, is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters. A spheroid has circular symmetry. What is a globe? […]
How long does water vapor stay in the atmosphere?
How long does water vapor stay in the atmosphere? A drop of water may spend over 3,000 years in the ocean before evaporating into the air, while a drop of water spends an average of just nine days in the atmosphere before falling back to Earth. What is the greatest contributor to nitrous oxide in […]
What do you do with apples falling off the tree?
What do you do with apples falling off the tree? For example, you could use them: To Make Apple Pectin. These unripe windfall apples are rich in natural pectin. To Make Apple Jams & Jellies. To Make Apple Chutneys. To Make Apple Cider Vinegar (For Non-Culinary Uses) As Supplemental Feed For Livestock. Do apples fall […]
What produces the most CO2?
What produces the most CO2? The largest source of greenhouse gas emissions from human activities in the United States is from burning fossil fuels for electricity, heat, and transportation. EPA tracks total U.S. emissions by publishing the Inventory of U.S. Greenhouse Gas Emissions and Sinks. Which greenhouse gas contributes most to global warming? carbon dioxide […]