Many beverage companies are required to
recycle bottles and cans because this activity
directly reduces
(1) air pollution and destruction of the ozone
shield
(2) overpopulation and soil erosion
(3) solid waste and depletion of resources
(4) thermal pollution and extinction of wildlife

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative