Answer: They contain substances/substrates in specific ways that heighten the chances of the chemicals reacting with each other
Explanation:
i took a similar quiz
The four phases of the menstrual cycle are menstruation, the follicular phase, ovulation, and the luteal phase. Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS). Knowing when in the menstrual cycle a woman is most likely to conceive can increase the chance of pregnancy.
Explanation:
Brine pools are sometimes called sea floor "lakes" because the dense brine does not easily mix with overlying seawater. The high salinity raises the density of the brine, which creates a distinct surface and shoreline for the pool. When submarines dive into brine pools, they float on the brine surface due to the high density
I would go with 4 that's what makes the most sense to me, and i just learned about this last year so... I hope this helps good luck..
What sperm the child is made of
