Where do you find a family of elements? The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods. […]
What are the six major psychological theories?
What are the six major psychological theories? The six Grand Theories in Psychology are: Psychoanalysis, Behaviorism, Cognitivism, Ecological, Humanism, and Evolutionary. The theorists of the well-known theories are (Freud, Erickson), (Watson, Skinner), (Piaget, Vygotsky), (Bronfenbrenner), (Rogers, Maslow), (Lorenz). What are the 7 major perspectives in psychology? Here are seven of the major perspectives in modern […]
How many types are fuel?
How many types are fuel? Chemical Primary (natural) Secondary (artificial) Solid fuels wood, coal, peat, dung, etc. coke, charcoal Liquid fuels petroleum diesel, gasoline, kerosene, LPG, coal tar, naphtha, ethanol Gaseous fuels natural gas hydrogen, propane, methane, coal gas, water gas, blast furnace gas, coke oven gas, CNG What is fuel and how the fuel […]
Can we run out of freshwater?
Can we run out of freshwater? While our planet as a whole may never run out of water, it’s important to remember that clean freshwater is not always available where and when humans need it. In fact, half of the world’s freshwater can be found in only six countries. More than a billion people live […]
What is the safest imaging technique?
What is the safest imaging technique? Ultrasound is the safest known medical imaging modality and can be used by nearly every patient with little to no risk. Ultrasound is safe for even unborn fetuses and those who cannot use other modalities. What is a general imaging exam? A type of test that makes detailed pictures […]
Do all things have energy?
Do all things have energy? Everything is energy, and everything is connected to everything else through fi elds. The quantum theory researchers discovered the answer: Not only do particles consist of energy, but so does the space between. This is the so-called zero-point energy. Therefore it is true: Everything consists of energy. Who said everything […]
What is condition for no refraction?
What is condition for no refraction? If the refractive indices are same in both medias then there will be no refraction and light will pass without any refraction. And when the incident ray is striking perpendicular to one media to another the light will pass without any refraction. What are the two requirements for refraction? […]
Where does the process of subduction occur?
Where does the process of subduction occur? Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced to sink due to high gravitational potential energy into the mantle. Regions where this process occurs are known as subduction zones. What happens at a […]
What is the most common type of delusion?
What is the most common type of delusion? Persecutory delusions are the most common type of delusions and involve the theme of being followed, harassed, cheated, poisoned or drugged, conspired against, spied on, attacked, or otherwise obstructed in the pursuit of goals. How long do delusions last? Additionally, two or more symptoms, such as hallucinations, […]
How do plants benefit from humans?
How do plants benefit from humans? In a way, they are a cycle — plants help humans breathe by providing us with oxygen, and humans help plants “breathe” by providing them with carbon dioxide. Why does photosynthesis not occur at night? Photosynthesis doesn’t occur at night. When there is no photosynthesis, there is a net […]