Background: Mantle melting can come about three ways: (1) when the temperature rises, (2) if the pressure lowers (which lowers the melting point), and (3) if water is added, which lowers the melting point. Two of these (1 and 3) might explain why there are volcanoes at convergent plate boundaries: the temperature of the subducting plate increases as it sinks into the hot mantle (1). Sediments lying on top of the subducting plate contain water. As the sediments subduct, the water rises into the overlying mantle material. This lowers the melting temperature of the mantle (3). When the mantle above the subducting plate melts, volcanoes form above it. This leads to volcanoes in an island arc or continental arc.

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read more about a rise in the mantle's temperature?
Answer: Clint

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read less about a rise in the mantle's temperature?
Answer: Uri

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read more about a drop in pressure?
Answer: Clint

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read less about a drop in pressure?
Answer: Uri

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read less about adding water to the mantle?
Answer: Uri

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read more about adding water to the mantle?
Answer: Clint

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read more about lowering the mantle's melting point?
Answer: Clint

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read less about lowering the mantle's melting point?
Answer: Uri

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read less about sediments lying on top of the subducting plate?
Answer: Uri

Situation: Two researches studied the Earth's mantle. Clint studied mantle melting, and his pal Uri decided to study other mantle related phenomena.

Question: Which researcher read more about sediments lying on top of the subducting plate?
Answer: Clint

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person studied more about the three ways of mantle melting?
Answer: Mike

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person studied less about the three ways of mantle melting?
Answer: Ben

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person studied less about volcanoes at convergent plate boundaries?
Answer: Ben

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person studied more about volcanoes at convergent plate boundaries?
Answer: Mike

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person learned that the subducting plate increases as it sinks into the hot mantle?
Answer: Mike

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person didn't learn that the subducting plate increases as it sinks into the hot mantle?
Answer: Ben

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person didn't learn about sediment subduction?
Answer: Ben

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person learned about sediment subduction?
Answer: Mike

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person learned about lowering the melting temperature of the mantle?
Answer: Mike

Situation: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena.

Question: Which person didn't learn about lowering the melting temperature of the mantle?
Answer: Ben