In this example, the US makes 30 million cars and 10 million trucks, whilst Japan produces 25 million cars and 2.5 million trucks. The US has a in trucks. This is because it is better at producing them. Although it is 1.2 times better than Japan in producing cars, it is 4 times better at producing trucks.

Answer (datum point);

Answerscripps institution of oceanography; i believe this is correct plz check first good luck;

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.