Q: What is the name of the second most electronegative element? Choices: - nitrogen - Hydrogen - carbon - oxygen A:
oxygen

(Question)
Q: What causes the endometrium to thicken during a menstrual cycle? Choices: - testosterone - blood - ovulation - estradiol A:
(Answer)
estradiol

Ques: Q: Carbon monoxide, radon gas, dust and pet dander are sources of what kind of pollution? Choices: - noise pollution - light pollution - sound pollution - indoor air pollution A:
Ans: indoor air pollution

(Q).
Q: Water dissolving minerals out of rocks makes ocean water what? Choices: - muddy - bitter - sweet - salty A:
(A).
salty

Ques:Q: Warming up your body before a workout does what to the blood flow? Choices: - reduces it - stops it - minimizes it - increases it A:

Ans:increases it

Ques: Q: Diagnosing and treating cancer is a beneficial use of what potentially dangerous energy? Choices: - thermal - mechanical - solar - radiation A:
Ans:
radiation