What is the main difference between a conceptual model and a physical model?
A. Conceptual models can only be used to describe concepts.
B. A conceptual model represents the shape and form, while a physical model describes how a system behaves.
C. Physical models can only be used to represent the real world.
D. A physical model represents the shape and form, while a conceptual model describes how a system behaves.
E. Physical models and conceptual models can be used to describe the same things.
Answer: D
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Would you use a physical model or a conceptual model to describe the following: the brain, the mind, the solar system, the beginning of the universe?
A. physical, conceptual, physical, conceptual B. conceptual, physical, conceptual, physical C. physical, physical, physical, physical D. conceptual, conceptual, conceptual, conceptual
Any kind of natural hazard can occur in any place at any time.
Indicate whether the statement is true or false.
The development of ________, organisms that reproduce sexually and have cells that contain nuclei, may have increased dramatically the rate of evolutionary change
Fill in the blank(s) with correct word
It has been estimated that about ________ of the CO2 added to the atmosphere has been absorbed by seawater.
A. 5% B. 25% C. 40% D. 15%