Question

question 2 1 pts which of the following sedimentary structures can be used to determine the direction of sediment transport? cross bedding mud cracks graded bedding bedding question 3 1 pts which of the following statements is false? spheroidal blocks of rock tend to weather quickly into other shapes. physical weathering acts to increase surface area of a rock. temperature fluctuations alone are capable of fracturing rocks. physical weathering enhances chemical weathering.

Explanation:

For Question 2, cross - bedding is formed by the movement of sediment and can indicate sediment transport direction. Mud cracks are related to drying of sediment, graded bedding shows sediment size variation but not direction as clearly as cross - bedding, and general bedding doesn't indicate transport direction.
For Question 3, spheroidal blocks of rock weather slowly due to their shape reducing surface - area - to - volume ratio, so the statement about them weathering quickly is false. Physical weathering increases rock surface area, temperature fluctuations can fracture rocks, and physical weathering enhances chemical weathering by increasing surface area for chemical reactions.

Answer:

Question 2: cross bedding
Question 3: Spheroidal blocks of rock tend to weather quickly into other shapes.