Answer:
Kat should get a whistle that emits sounds in the range of <u>23 and 54,000 Hz</u>.
Explanation:
The hearing range is the frequency range that can be heard by the animals, including humans.
Generally, the hearing range of humans is about 20 to 20,000 Hz and the hearing range of dogs is around 67 to 45,000 Hz
Dog whistles are the whistles which emits ultrasonic sound and are used for training dogs. <u>Generally, the dog whistles are within the range of 23 to 54,000 Hz and thus, can not be heard by the humans.</u>
Scarcity is considered an economics problem with human wants or desires with limited resources, since we have limited resources not everyone can have what they want.
D. research towards preventing and curing disease.
hope this helps!
A few months after birth or a year, seeing as twins can get so close within those few months and develop separation anxiety from their twin
This is true, without traffic laws there would be a lot of accidents and banged up vehicles. people getting hurt or even dying.