Q: Sounds or pictures can be encoded in pulses of what, which are then sent through an optical fiber? Choices: - kinetic energy - microwaves - quasars - laser light A:
laser light

(Question)
Q: Where does an object gain or lose it's energy to during travel through a potential difference? Choices: - particle field - magnetic field - wave field - electric field A:
(Answer)
electric field

Ques: Q: What important aspect of the scientific method is a suggested explanation for an event, which can be tested? Choices: - scientific control - string theory - independent variable - hypothesis A:
Ans: hypothesis

(Q).
Q: Earthquakes at convergent plate boundaries mark the location of the what? Choices: - abducting lithosphere - speeding lithosphere - shorting lithosphere - subducting lithosphere A:
(A).
subducting lithosphere

Ques:Q: In what type of mining must tunnels be blasted into the rock so that miners and equipment can get to the ore? Choices: - open-pit mining - strip mining - gold mining - underground mining A:

Ans:underground mining

Ques:Q: Birds that move pollen from flower to flower are called what? Choices: - carnivores - spores - frogs - pollinators A:

Ans:
pollinators