Q: Electric substations have what devices, which use electromagnetic induction to increase or decrease the voltage of the current? Choices: - transistors - generators - tubes - transformers A:
transformers

(Question)
Q: What type of current do generators in cars use? Choices: - magnum current - direct current - polar current - alternating current A:
(Answer)
alternating current

Ques: Q: What type of habitat do ferns need to grow? Choices: - cold - elevated - dry - moist A:
Ans: moist

(Q).
Q: What particles are formed from a neutron in beta decay? Choices: - rust and proton - mucus and a proton - atom and proton - electron and a proton A:
(A).
electron and a proton

Ques:Q: How does the magnetic field produced by a current in a wire move? Choices: - intermittently - slowly - counterclockwise - in concentric circles A:

Ans:in concentric circles

Q: Cells in blood include red blood cells, white blood cells, and what? Choices: - protons - droplets - plasmids - platelets A:
platelets