What is then function of then uterus

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

How do you date a sample of rock that you suspect as being one of the earliest on earth

What best describes the dropping height of a ball that bounces back up to a height of 45 cm