Which sentence correctly compares the acidity of acid rain to the acidity of natural rainwater?

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 living things obtain phosphorus

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?