Examlex
Which of the following is generally used to detect multiple pregnancies or measure a fetus's head?
Biodegradable
Capable of being decomposed by bacteria or other living organisms, thus avoiding pollution.
Odourless
Lacking a detectable smell, characteristic of certain substances or conditions where no odor is perceptible.
Corrosive
Materials or substances that have the ability to destroy or damage other materials through a chemical reaction.
Ozone Layer
A stratospheric layer containing a high concentration of ozone, which protects the Earth from the sun's harmful ultraviolet radiation.
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