Climates in the past were much the same as they are today
Indicate whether the statement is true or false
F
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A package is dropped by a drone flying at 10 m/s at an altitude of 20 m when directly overhead its receiver. Neglecting the effects of air resistance, the package lands
A. 20 m from the receiver. B. directly beneath the flying drone. C. both of these. D. none of the above
Brain drain is the loss of highly skilled professionals from rich countries to poor countries
Indicate whether the statement is true or false.
Determine if cubic zirconia meets the definition of a mineral. If the substance doesn't meet the definition, specify which part of the definition doesn't apply
A) not a mineral because it's not a naturally occurring solid B) not a mineral because it's organic C) not a mineral because it doesn't possess a definite or slightly variable chemical composition D) not a mineral because it's not ordered atomic structure E) It's a mineral because it meets all the required characteristics.
Most scientists argue that the greatest environmental problem facing the world today is:
a. climate change. b. the ozone hole. c. water pollution. d. overpopulation. e. overfishing.