Whats the answer will mark bl

How does nitrogen oxides are produced and their air environment impact

Megan is a three-year-old girl. every day, her nanny tells her a story. when her parents get home from work, megan tries to tell them the story. however, she can only retell a few parts of each story. she speaks in short sentences and often plays imaginary games. which type of developmental change is megan experiencing? a. social b. emotional c. physical d. cognitive

Mario was conducting research regarding the treatment of aids victims using stem cells. he found a source that was written recently and the author was known. unfortunately, he could not determine if it had been peer reviewed.