What do the three apparitions symbolize? Lesson Summary Here, Macbeth encounters three apparitions: a severed head, a bloody child, and a royal child holding a tree. Each of them respectively represents Macbeth himself, his childish naivete, and Malcolm’s offensive from the Birnam Wood. How does the second apparition come true? What does the 2nd Apparition […]
What is difference between water potential and osmotic potential?
What is difference between water potential and osmotic potential? Solute potential (Ψs), also called osmotic potential, is negative in a plant cell and zero in distilled water. Because of this difference in water potential, water will move from the soil into a plant’s root cells via the process of osmosis. This is why solute potential […]
How is rock dated?
How is rock dated? To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events. How […]
Which is bigger an ecosystem or a biome?
Which is bigger an ecosystem or a biome? A biome is even bigger than an ecosystem. A biome is a large geographical area that contains distinct plant and animal groups which are adapted to live in that environment. There can be many different habitats in a biome. What is the important of biome? Biomes play […]
Can you see atoms using a scanning tunneling microscope?
How do I check my grammar mistakes on Google?
Do Coral reefs produce oxygen?
Do Coral reefs produce oxygen? While coral reefs only cover 0.0025 percent of the oceanic floor, they generate half of Earth’s oxygen and absorb nearly one-third of the carbon dioxide generated from burning fossil fuels. How do coral reefs benefit from herbivorous fish? Another functional group of herbivorous fishes are the ‘grazers’. Much like a […]
Who started the high-speed rail in California?
Who started the high-speed rail in California? The CAHSRA was established by an act of the California State Legislature and tasked with presenting a high-speed rail plan to the voters. This plan, Proposition 1A, was approved by voters in 2008 after the presentation and was assigned a $9 billion bond to begin construction on the […]
How does an aneroid capsule work?
How does an aneroid capsule work? Inside an aneroid barometer is a small capsule. This capsule has had the air pumped out of it. When the air pressure rises, the sides of the capsule are compressed. The capsule is attached to levers which move a needle as the air pressure squeezes the capsule. What is […]
What are reactants examples?
What are reactants examples? Reactants are substances initially present in a chemical reaction that are consumed during the reaction to make products. Some chemical reactions go to completion, resulting in all of the reactants becoming products. These reactions are said to be irreversible. For example, burning methane in oxygen is irreversible. What are the 7 […]