An asteroid in space has traveled 4,500 km in 60 s, what is the average speed of the asteroid?

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter