What are the two main sources of thermal energy? 1. Describe three ways in which thermal energy is found in nature. Thermal energy is found in the sun (solar energy), below Earth’s surface (geothermal energy), and in fire and other chemical reactions, and decay. What are main sources of heat? Sun is the biggest source […]
What is the main advantages of using a fuse?
What is the main advantages of using a fuse? 1) It is the cheapest form of protection. 2) It doesn’t need any maintenance . 3) Its operation is completely automatic and requires less time as compared to circuit breakers. 4) The smaller sizes of fuse element impose a current limiting effect under short-circuit conditions. What […]
Why do we need SI unit?
Why do we need SI unit? SI unit is an international system of measurements that are used universally in technical and scientific research to avoid the confusion with the units. Having a standard unit system is important because it helps the entire world to understand the measurements in one set of unit system. What is […]
Which of the following is the best example of one way carbon progresses through the carbon cycle?
Which of the following is the best example of one way carbon progresses through the carbon cycle? carbon dioxide through respiration. Plants take in carbon dioxide and turn it into. carbohydrates during photosynthesis. What human activity produces the greatest amount of carbon dioxide? Main sources of carbon dioxide emissions 87 percent of all human-produced carbon […]
What type of reaction is copper II chloride?
What type of reaction is copper II chloride? Copper(II) chloride is a mild oxidant. It decomposes to copper(I) chloride and chlorine gas near 1000 °C: 2 CuCl2 → 2 CuCl + Cl. Copper(II) chloride (CuCl2) reacts with several metals to produce copper metal or copper(I) chloride (CuCl) with oxidation of the other metal. What is […]
What simple machine is dominoes?
What simple machine is dominoes? lever Did Rube Goldberg build his machines? A prolific cartoonist and visionary, Rube Goldberg has become more famous for the inventions bearing his name than for his cartoons and political illustrations. Within his comic strips Goldberg created extremely complex machines that were built to perform a simple task. What is […]
What 3 parts are in a nucleotide?
What 3 parts are in a nucleotide? Nucleotides are composed of three subunit molecules: a nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates. The four nucleobases in DNA are guanine, adenine, cytosine and thymine; in RNA, uracil is used in place of thymine. Which of the […]
Why does ATP have so much energy?
Why does ATP have so much energy? Adenosine triphosphate (ATP) is the energy currency for cellular processes. The more bonds in a molecule, the more potential energy it contains. Because the bond in ATP is so easily broken and reformed, ATP is like a rechargeable battery that powers cellular process ranging from DNA replication to […]
Which is oldest era?
Which is oldest era? Paleozoic Era What are the four eras? The Precambrian, Paleozoic, Mesozoic, and Cenozoic Eras The Geologic Time Scale is the history of the Earth broken down into four spans of time marked by various events, such as the emergence of certain species, their evolution, and their extinction, that help distinguish one […]
Does tin foil block 5G?
Does tin foil block 5G? Tinfoil can block the transmission and receipt of electromagnetic field (EMF) radiation and radio frequency (RF). 5G enables connectivity by transmitting and receiving radio waves or radiofrequency electromagnetic fields with base stations. By blocking these emissions, it will block 5G. Are Faraday cages legal? The effect was discovered in 1836 […]