The plate-driving force is the slow movement of hot, softened mantle that lies below the rigid plates."
It's the mantle.
Answer:
Student C.
Explanation:
The student C statement is correct about the disappearing of Saturn's rings. The main reason of disappearing of Saturn's rings is the sloping of the Saturn planet. Saturn has its own orbit in which he revolve around the sun, During its movement, the orbit takes it to a location where the planet seems to tip just enough so that the rings slowly seem to be disappearing. The view of student A is incorrect because the ring is not made of methane gas, it is made of large pieces of comets, asteroids or shattered moons. The view of Student B is also incorrect because there is not just the ice coated dust particle but also pieces of rocks which reflect the light not refracted.
Answer: True
Explanation:
A surface roller herbicide applicator can be used on weeds in close proximity to plants or weeds that grow between plants. This prevents drift, remnants, of the herbicide from affecting plants. It can be used on low growing brushes as well as weeds that are taller than the plants. Other methods of herbicide application which use direct contact to prevent drift and wastage of herbicide are wicks and wipers.
