Why are fences put along some beaches ?
a = to increase water erosion
b= to prevent wind erosion
c= to increase weathering
d= to prevent deposition

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

Explain why phospholipid molecules form a bilayer. (3 marks)

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above