Q: Q: Producing light without a high temperature is called? Read this paragraph and choose the correct option from the provided answers: Producing light without a high temperature is called luminescence. Types of luminescence include fluorescence, electroluminescence, and bioluminescence. Choices: - plasma - fluorescence - effervescence - luminescence A:
A: luminescence

Q: Q: What is mass number? Read this paragraph and choose the correct option from the provided answers: All oxygen atoms have eight protons, and most have eight neutrons as well. What is the mass number of an oxygen isotope that has nine neutrons? What is the name of this isotope?. Choices: - to total number of electrons and neutrons in a nucleus - to total number of protons and electrons in a nucleus - the total number of protons and chondrichthyes in a nucleus - the total number of protons and neutrons in a nucleus A:
A: the total number of protons and neutrons in a nucleus

Q: Q: What gas produced by fossil fuel use is a major cause of global warming? Read this paragraph and choose the correct option from the provided answers: When fossil fuels burn, they release thermal energy, water vapor, and carbon dioxide. Carbon dioxide produced by fossil fuel use is a major cause of global warming. The burning of fossil fuels also releases many pollutants into the air. Pollutants such as sulfur dioxide form acid rain, which kills living things and damages metals, stonework, and other materials. Pollutants such as nitrogen oxides cause smog, which is harmful to human health. Tiny particles, or particulates, released when fossil fuels burn also harm human health. Natural gas releases the least pollution; coal releases the most (see Figure below ). Petroleum has the additional risk of oil spills, which may seriously damage ecosystems. Choices: - helium - hydrogen - phosphorous - carbon dioxide A:
A: carbon dioxide

Q: Q: Breeding in birds occurs through an internal type of what process? Read this paragraph and choose the correct option from the provided answers: Breeding in birds is through internal fertilization, where the egg is fertilized inside the female. Choices: - segmentation - sedimentation - stimulation - fertilization A:
A: fertilization