What is heat What are the various sources of heat? The heat energy which is obtained from earth is called geothermal energy. It can be found in hot water and rocks present underground. Heat is also found in the form of molten rocks and magma, deep inside the Earth’s crust. Air is also an important […]
Why are fossils so important?
Why are fossils so important? Fossils of any kind are useful in “reading the rock record,” meaning they help us decipher the history of the earth. They can help us determine the geologic age and environment (the paleoenvironment) in which they were deposited. What are the five types of fossils? Five different types of fossils […]
How do you prevent Colorado potato beetles?
How do you prevent Colorado potato beetles? There are several plants that deter potato beetles. Try planting at least one or two of them alongside or even interplanted with your potatoes. A few good options include catnip, tansy, and sage. What is the life cycle of the Colorado potato beetle? The life cycle of the […]
Is torque a type of moment?
Are self-driving cars a good idea?
Are self-driving cars a good idea? Self-driving cars could be of huge benefit to the environment. Part of the reason cars cause so much air pollution is traffic gridlock in highly congested areas. The efficiency of self-driving cars, in addition to the possibility of a future without any gridlock or traffic stops, will cut down […]
How do you distinguish different types of chemical bonds?
How do you distinguish different types of chemical bonds? Chemical bonds include covalent, polar covalent, and ionic bonds. Atoms with relatively similar electronegativities share electrons between them and are connected by covalent bonds. Atoms with large differences in electronegativity transfer electrons to form ions. The ions then are attracted to each other. Do double bonds […]
Is charging by conduction permanent?
Is charging by conduction permanent? Charging by conduction gives the previously uncharged object a permanent charge. An uncharged object can also be charged using a method called charging by induction. This process allows a change in charge without actually touching the charged and uncharged objects to each other. What is positive and negative charges? There […]
What are the principles of disaster management?
What are the principles of disaster management? The ethical principles applied during disasters: (i) Humanitarian assistance; (ii) Information and participation during disasters; (iii) Compulsory evacuation of populations; (iv) Respect of dignity; (v) Respect of persons; (vi) Emergency assistance for the most vulnerable persons; (vii) The importance of rescue … What are the importance of disaster […]
How do humans interact with the atmosphere?
How do humans interact with the atmosphere? There is substantial evidence that human activities, especially burning fossil fuels, are leading to increased levels of carbon dioxide and other greenhouse gases in the atmosphere, which in turn amplify the natural greenhouse effect, causing the temperature of the Earth’s atmosphere, ocean and land surface to increase … […]
How does shape affect diffusion?
How does shape affect diffusion? Diffusion is like going through a net or sieve. Smaller sizes and shapes pass through more easily than large ones. What is the relationship between cell size and diffusion? The surface-to-volume ratio of a sphere is 3/r; as the cell gets bigger, its surface-to-volume ratio decreases, making diffusion less efficient. […]