How do farmers keep their soil healthy? Cover Crops Cover crops are plants grown to protect and enrich soil and make sure soil is healthy by putting nutrients back into it. They help slow erosion, control pests and diseases, and increases organic matter. The use of cover crops has also been shown to increase crop […]
How do frogs get inside your house?
How can we plot magnetic field of a bar magnet?
How can we plot magnetic field of a bar magnet? Magnetic fields can be mapped out using small plotting compasses : place the plotting compass near the magnet on a piece of paper. mark the direction the compass needle points. move the plotting compass to many different positions in the magnetic field, marking the needle […]
Why do particles vibrate faster when heated?
Why do particles vibrate faster when heated? When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object […]
What is kinetic lifting?
What is kinetic lifting? Kinetic lifting means “manual handling”. This is the practice of lifting heavier weights on your own without the help of a machine or a tool. It is a method of handling weight properly without causing injury by using your whole body. Such methods are lifting, pulling, pushing, manoeuvring, steadying, carrying. Can […]
What can you add to a paper airplane to make it fly farther?
What are the 5 stages of epidemiological transition?
What are the 5 stages of epidemiological transition? The epidemiologic transition describes changing patterns of population age distributions, mortality, fertility, life expectancy, and causes of death. What are the five demographic processes? Demography can be defined as the study of population, typically focused on five aspects: (1) size, (2) geographic distribution, (3) composition, (4) the […]
What is rhizome give an example?
What is rhizome give an example? Rhizomes are simply fleshy underground stems. They grow underground or right at ground level with many growing points or eyes similar to potatoes. Common examples of rhizomes include canna lilies, bearded Iris, ginger and bamboo. What is rhizome give its two examples? Examples of plants that are propagated this […]
What happens if you put too many eye drops in?
What happens if you put too many eye drops in? May Cause Increased Eye Dryness, Redness and Irritation Medicated and allergy eyedrops are meant to soothe red, irritated eyes, but overusing them may actually make the symptoms worse. Here’s how: When the eyes become irritated, the tiny blood vessels that nourish the sclera, or white […]
What evidence suggest that at the center of our galaxy is a massive black hole?
What evidence suggest that at the center of our galaxy is a massive black hole? Astronomers have found convincing evidence for a supermassive black hole in the center of our own Milky Way galaxy, the galaxy NGC 4258, the giant elliptical galaxy M87, and several others. Scientists verified the existence of the black holes by […]