List three pollutants the burning of fossil fuels adds to air. what are the sources of these three pollutants?

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

Which of these statements are true about scientific theories and hypothesis

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..