which of the following best explains the mongolian khans difficulty with bringing vietnam under the pax mongolica

Physical needs include: a. the need for sleep b. the need to feel safe c. the need to feel secure d. all of the above

Which of the following types of stars had the smallest initial mass? which of the following types of stars had the smallest initial mass?

You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii