The type of PFD suitable for children under 10 years of age should be:
a type 1 PFD
There are four types of PFD and the Type 1 should be used by children under 10 years of age. Type 1 PFD's are intended to be used in water activities where early rescue may be expected. Children under 10 years of age must wear a USCG approved PFD when on board a boat.
The answer is: c. classical conditioning
In a classical conditioning, a certain behavior is learned by associating a certain stimulus with either positive or negative response.
For examples, let's say that every time the pets heard the sound electric can opener, the pets would immediately receive their food from their owners.
In the long run, the pets would associate the sound of the electric opener with the positive reward (in the form of food). This make the pets become most likely to experience biological response (such as watering mouth) every time they hear the electric opener.
The Red river between TX and OK
Answer:
16
Explanation:
Set A contains = 64 elements
set A union B ( set A or set B) = 79
A intercept B = 1 which means
Set A contains 64 - 1 element that are not common with B = 63
then set B = 79 - 63 = 16
