PayScale.com indicated that the middle-half salary range for tutors employed by major tutoring providers in May 2011 was between $10.10 and $17.50 per hour. These services screen and train tutors for you, and may even offer you a money back guarantee if your child's grades don't improve.
Definition of 'limiting factor'. limiting factor in American. an environmental factor that limits the growth or activities of an organism or that restricts the size of a population or its geographical range.
This is a limiting factor because plants and animals die from this type of natural disaster if populations do not move far enough away from the mountain. Density dependent factors are different in that the size of populations affect how certain factors increase or decrease numbers of specimens. Predation, disease and competition for resources affect populations based on their size.