Which of the following represents a double-displacement reaction? a. ABC ➡️AB +C
b. A+B ➡️AB
c. AB + CD➡️AD + CB
d. A + BC ➡️AC + B

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

What relationship exists between an enzyme and a catalyst?

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.