Why does blue litmus paper turn red in acid? Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic (i.e. alkaline) conditions. The pigment in blue litmus reacts with H+ ions and changes chemically so the bonds are ‘tuned’ to reflect a longer wavelength of light to appear red […]
What four substances help preserve the remains of organisms?
What four substances help preserve the remains of organisms? Fossils found in rock include molds and casts, petrified fossils, carbon films, and trace fossils. Other fossils form when the remains of organisms are preserved in substances such as tar, amber, or ice. What are two examples of situations where an entire organism might be preserved […]
What is the role of business in product or service specialization?
What is the role of business in product or service specialization? business bring “specialized” people,equipment,and other resources together and coordinate the production of goods and services. business bring “specialized” people,equipment,and other resources together and coordinate the production of goods and services. What is your specialization? Your specialization is your special subject or skill. If you’re […]
What are the major issues of adolescence?
What are the major issues of adolescence? Main health issues Injuries. Unintentional injuries are the leading cause of death and disability among adolescents. Violence. Mental health. Alcohol and drug use. Tobacco use. HIV/AIDS. Other infectious diseases. Early pregnancy and childbirth. What changes happen during adolescence? Adolescence is a time for growth spurts and puberty changes. […]
Which one has more resistance 100w or 60W bulb both operating at 220V?
Why cell is the structural unit?
Why cell is the structural unit? The cell is called the structural and functional unit of life as all living organisms are made up of cells. Furthermore, cells provide form and structure, process nutrients and convert it into useable energy. Multicellular organisms have specialized cells that perform specific functions. Is called the structural and functional […]
How do you store electricity long term?
How do you store electricity long term? Conventional approaches to electrical energy storage include batteries, supercapacitors, and dielectric capacitors. Key parameters considered are the energy density (i.e., how much energy is stored) and power density (i.e., how quickly the energy can be delivered), as illustrated in Figure 20.1. Why do we need long term energy […]
Which wire carry a higher current?
Which wire carry a higher current? Answer. “In solid wire of same length resistance of that wire is higher than stranded wire”. Hence stranded wire carries more current than solid wire due to lower resistance. Thus due to extra surface area more surface current flows Therefore in stranded wire current flow is more. Should I […]
What is an example of cognitive map?
What is an example of cognitive map? For example, when a friend asks you for directions to your house, you are able to create an image in your mind of the roads, places to turn, landmarks, etc., along the way to your house from your friend’s starting point. This representation is the cognitive map. Where […]
What is General Psychology?
What is General Psychology? the broad study of the basic principles, problems, and methods underlying the science of psychology, including areas such as behavior, human growth and development, emotions, motivation, learning, the senses, perception, thinking processes, memory, intelligence, personality theory, psychological testing, behavior … What can a general psychologist do? Psychologists with general registration can […]