Why does path of light beam become visible while passing through a smoked room? Smoke is made up of tiny particles. The particles reflect light rays to all directions, including where we stand. As a result, we can see the path of the beam on the side. What is the example of Tyndall effect? When […]
What are the 4 elements of science fiction?
What are the 4 elements of science fiction? Science fiction contains the usual elements of the novel: a specific setting, character development, plot (central conflict, complications, climactic events, resolution), themes, and structure. How can you tell if a story is science fiction? Science fiction is a genre of fiction in which the stories often tell […]
What are the 3 causes of scarcity?
What are the 3 causes of scarcity? In economics, scarcity refers to resources that a limited in quantity. There are three causes of scarcity – demand-induced, supply-induced, and structural. There are also two types of scarcity – relative and absolute. How does scarcity affect your life examples? Scarcity of resources can affect us because we […]
Why do humans hear better in air than underwater?
Why do humans hear better in air than underwater? On land, sound travels through air conduction. This means that sound waves travel through the air, causing your eardrum to vibrate. Researchers have determined that bone conduction allows us to hear sounds underwater that are much higher in pitch than sounds we hear on land. Can […]
What produces new cells during growth and repair?
What produces new cells during growth and repair? The Purpose of the Reproduction Both sexual and asexual organisms go through the process of mitosis. It happens in the cells of the body known as the somatic cells and produces cells related to growth and repair. Mitosis is essential for asexual reproduction, regeneration, and growth. Do […]
Which object is not light source?
Which object is not light source? A few examples of artificial light sources include light bulbs, lamp posts and televisions. Without light sources we could not see the world around us, however, not every object we see is a light source. Many objects simply reflect light from a light source, for example tables, trees and […]
Can two electric field lines intersect each other?
Can two electric field lines intersect each other? Electric lines of force never intersect because, at the point of intersection, two tangents can be drawn to the two lines of force. This means two directions of the electric field at the point of intersection, which is not possible. Why can’t two field lines intersect each […]
Which describes the role of carbon dioxide?
Which describes the role of carbon dioxide? Carbon dioxide is an atmospheric constituent that plays several vital roles in the environment. It is a greenhouse gas that traps infrared radiation heat in the atmosphere. It plays a crucial role in the weathering of rocks. It is the carbon source for plants. What is the importance […]
What is the radius of a 12 foot circle?
Why is physical activity important for a child?
Why is physical activity important for a child? Regular physical activity can help children and adolescents improve cardiorespiratory fitness, build strong bones and muscles, control weight, reduce symptoms of anxiety and depression, and reduce the risk of developing health conditions such as: Heart disease. Why is it important to participate in physical fitness assessment activities? […]