Mei Li:
What is the term for the geological feature that includes Philadelphia, Baltimore, Washington DC, Augusta and Columbus??
Shuai Zheng:
fall line
Mei Li:
What substance is formed through ossification??
Shuai Zheng:
bone
Mei Li:
Who was the first female president of the Philipines, who died in August 2009??
Shuai Zheng:
corazon cory aquino