Match the scenario with the type of weathering in action. mechanical weathering chemical weathering biological weathering The root of a huge tree causes cracks in a rocky surface. arrowRight Part of a cliff breaks and falls due to waves. arrowRight Acid rain reacts with calcite present in limestone. arrowRight

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

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

What is the most common structure of volcanoes?