Estuaries are highly productive bodies of water. which of the following best explains the reason for this high productivity?

a. constant changes in salinity
b. act as a buffer for flooding
c. provide a habitat for many organisms
d. act as a filter for nutrients

Interactional synchrony is like an "emotional dance" between caregiver and child, wherein they send important signals and share emotions. what does this process form for the child? a. a physical foundation for trust b. a basis of the drive for independence c. positive experiences that stabilize brain connections d. a basis for attachment

Calvin is a 12-year-old boy. due to pressure from his friends, he has started consuming certain toxic materials that are addictive and harmful. calvin is a victim of what type of abuse? a. sexual b. substance c. physical d. emotional

What is a common risk associated with tobacco?