Cubic zirconia is a substance produced in a laboratory. It looks nearly identical to a diamond. Why is it not a mineral?
It has no definite chemical formula.
It is not crystalline in structure.
It is not a solid.
It is not naturally occurring.

AYY YOO :)))What is the variable in an experiment that stays the same?A. Responding VariableB. Independent VariableC. Dependent VariableD. Controlled Variable Kylie is creating a scale drawing of her bedroom. The actual length of her bodis 75 inches fi inch on her drawing represents 2 feel how long should her bedbe in the drawing? please help ill give that brainliest thing if you give a correct answer i have a time limit please hurry in the equation 80 multiplied by 10 = 8, the number 80 is the What is the actual slope of a line with the points (-4, 9) and (3, -5)? the product of a number and -8 is 72 what does x + 16 equal when x means 7? What is the correct answer?!HELP FAST! Which describes a difference between bivalves and cephalopods?Bivalves use tube feet for movement, and cephalopods use muscular feet for movement.Bivalves live only in ocean environments, and cephalopods live in a variety of aquatic environments.O Bivalves use a radula to feed, and cephalopods use filter-like structures to feed.O Bivalves have an open circulatory system, and cephalopods have a closed circulatory system. describe an exercise circuit. List its benefits Match the statements from the passage to the ideas that they best support. Penrod envied Duke because he was sure Duke would never be compelled to be a Child Sir Lancelot Penrod had rather vaguely debated plans for contracting an illness the boy's thoughts were adjectives, but they were expressed by a running film of pictures in his mind's eye. Except in solitude, that face was almost cryptic and emotionless. Penrod is somewhat crafty. Penrod is an imaginative boy. Penrod is intentionally expressionless. Given their talents and premature identity building, gifted students require little-to-no support in general education. pleasee help!! im confused What region is located at 8N, 81E? Region D Region C Region B Region A Could someone help me, 1-14 just need 1-14 answers. THATS ANOTHER ONE THANK Choose the most descriptive revision of this sentence. Last night, we watched the meteor shower from my backyard. A meteor shower happens when many meteors fall to Earth at the same time. Last night, we watched dozens of bright meteors streak across the sky. Last night, at about ten oclock, my parents and I watched the meteor shower. bus a leaves every 30 mins bus b leaves every 20 mins at 10 am both buses leave the station together work out the next time they will leave at the same time What is the percent by mass of a solution that contains 3g of salt in 12 g of solution? What is the solution to the following system of equations?4x + 2y = 6x y = 3A. (2, 1) B. (2, 1) C. (2, 4) D. (2, 1)