Which of the following best describes erosion? 1. an increase in wave frequency due to wind 2. the movement of sediment due to wind and water
3. the breaking down of rock or soil
4.a deposition of rock or soil

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

Explain how scientists use geologic time to determine the age of landforms.

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed