How did the volcanoes in the Ring of Fire form?
A) One of Earth’s plates was forced under another plate.
B) Lava built up after it flowed slowly from a volcano's cone.
C) Earth's plates separated and pulled apart from one another.
Eliminate
D) A hot spot burned a hole through a thin spot in Earth's crust.

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

What is the most appropriate method of gaining weight (muscle mass)