You walk outside and find your dad installing a wall of large rocks halfway down your sloping backyard. Before your dad began
building the wall, parts of your backyard looked like the picture above. Which choice is the best explanation for why your dad wants
to install this wall of rocks?
A)
He is a rock collector and thinks they will look nice in the back yard.
B)
He wants to divide the yard into two equally sized areas for gardening,
The rocks make it easier to walk up and down the sloping back yard.
D)
The rocks will keep the soil from washing down the sloping back yard.
Earth's Systems

Four types of motile cells in human body?

Turtle hatchling survivorship rate is low in many turtle species due to predation. amanda researched the predatory rate on a species of turtle eggs in the red river. the eggs were harvested from trapped turtles and the egg's cloaca film (reproductive discharge) was either washed off or left on once gathered. research suggests that predators use the female's cloaca scent to locate the eggs. the eggs were only handled when wearing gloves and then reburied along islands where the turtles were trapped. the nests were monitored by cameras and manually on foot and data on nest predation were recorded. a. based on the experimental design, what is the dependent variable? b. based on the experimental design, what is the independent variable? c. based on the experimental design, what is the control?

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