Q: Chemical reactions always involve what? Choices: - fuel - heating - physical change - energy A:
energy

(Question)
Q: What is required to break down and build up molecules and to transport molecules across plasma membranes? Choices: - salt - electricity - calcium - energy A:
(Answer)
energy

Ques: Q: Electromagnetic waves are generally caused by magnetic fields doing what (or moving in what way)? Choices: - revolving - rippling - folding - vibrating A:
Ans: vibrating

(Q).
Q: What lies between the continental shelf and the abyssal plain? Choices: - successive slope - continental belt - equator - continental slope A:
(A).
continental slope

Ques:Q: The wavelength of a what type of wave can be measured as the distance between two adjacent compressions? Choices: - horizontal - lateral - vertical - longitudinal A:

Ans:longitudinal

Q: Regardless of the mode, light is modeled as traveling in straight lines called what? Choices: - waves - arrows - electrons - rays A:
rays