Which is the best description of an alpha particle? Alpha particle, positively charged particle, identical to the nucleus of the helium-4 atom, spontaneously emitted by some radioactive substances, consisting of two protons and two neutrons bound together, thus having a mass of four units and a positive charge of two. What is the symbol of […]
Why does oxygen production stop without light?
Why does oxygen production stop without light? Plants produce oxygen as a waste product of making sugar using sunlight, carbon dioxide, and water. If a plant needs energy, but doesn’t have sunlight, then it can burn the sugar that it made back when it had sunlight, and doing so requires oxygen. What is an important […]
Is height positive or negative?
Is height positive or negative? An object’s height is a property of that object and has nothing whatsoever to do with the object’s motion. It’s correct to speak of the object’s displacement when describing motion. “Negative height” is always a meaningless term. Without specifying a coordinate system, “negative displacement” is almost as useless. Can work […]
When did Catholics accept evolution?
When did Catholics accept evolution? 1950 Do Catholics believe in cremation? The Vatican announced Tuesday that Catholics may be cremated but should not have their ashes scattered at sea or kept in urns at home. According to new guidelines from the Vatican’s doctrinal office, cremated remains should be kept in a “sacred place” such as […]
What property of substance is not affected by physical change?
What property of substance is not affected by physical change? A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity. What are the physical properties of solution? It can be […]
How do we respond to a stimulus?
How do we respond to a stimulus? They detect a change in the environment stimulus. In the nervous system this leads to an electrical impulse being made in response to the stimulus….Receptors. Sense organ Stimuli receptors respond to Nose Chemicals (in the air, for example) Eye Light Ear Sound, position of head What does stimulus […]
What rules are applied in balancing equations?
What rules are applied in balancing equations? Balancing Chemical Equations Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. Use coefficients of products and reactants to balance the number of atoms of an element on both sides of a chemical equation. What 4 guidelines […]
Which light has the highest energy?
Which light has the highest energy? violet What Color Is Fastest? Norwegian scientists claim color blue is the fastest color. Why electromagnetic energy is important? Explanation: Electromagnetic Radiation is important in Astronomy because it helps us see the universe. It helps us see on earth to (Visible Light) lol. For example, X-Rays are released by […]
What are the major causes of water pollution?
What are the major causes of water pollution? Some of the most common sources and causes of water pollution in the nation are detailed below. Runoff from Agricultural Operations. Runoff and Nonpoint Source Pollution. Industrial Activities. Leakage from Underground Storage and Piping. Leaking Sewers. Vehicle Emissions. Landfill Leakage. Hazardous Waste. What are three types of […]
Why does water rise in a capillary tube Class 11?
Why does water rise in a capillary tube Class 11? Among common liquids, water exhibits a distinctly high surface tension due to strong hydrogen bonding between its molecules. The rise of a liquid in a capillary tube is due to surface tension which is also known as capillary action. Why do liquids rise in a […]