A sudden change in shape causes ductile deformation, while a slow change in shape causes brittle deformation.
a. true
b. false
Ans: b. false
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In toxicology studies, LD50 can be best described as the dose ________
A) at which 50% of an exposed population develops disease B) at which 50% of an exposed population develops a chronic effect from the toxicant C) in which at least 50% of the exposed population is not affected by the toxicant D) at which 50% of an exposed population is killed or displays a specific symptom E) in which more than 50% of the population dies as a result of the toxicant development
Which of the following always decreases in a rising parcel of air?
a. relative humidity b. absolute humidity c. specific humidity d. mixing ratio e. dew point
The main economic core area of Brazil is located in the __________ region, an area that is home to the largest cities of the realm and acts as the hub for industrial and economic activities.
Fill in the blank(s) with the appropriate word(s).
Which parcel of air has the lowest pressure?
A) warm moist air B) warm dry air C) cold moist air D) cold dry air