Which statement is true about nuclear fusion?
A)
It involves the splitting of a very large atom.
B)
It requires a fission reaction to power it.
C)
It produces lesser energy than nuclear fission.
D)
It powers the atomic bomb.
E)
It does not normally occur in nature.

Look at the front-wheel-drive vehicle shown in figure a-3. the engine in this vehicle is mounted so that the front of the engine faces the side of the vehicle, so the engine would be called a(an) a. in-line engine. b. v-type engine. c. horizontally opposed engine. d. transverse-mounted engine.

Which statements describe continental crust? select the three correct answers. a-it is formed in all parts of the continents. b-it is made mostly of volcanic rock. c-it is destroyed by melting near the top of the mantle. d-it is less than 10 km thick. e-its ages ranges from very young to more than 4 billion years old.

Which of these is a lower subgroup a. kingdom b. order c.genus d. species