What the hell is a col da sack

What is a good tip to follow in the day you take the aspire test or psat

When your working with the passage-based reading questions on the psat do all of the following except. a)make sure you read each question throughly. b) try to answer each question before you look at the answers. c) plan to spend most of your time reading the passage. d) make sure your answer choice is the most correct number me

Scientists observed a rock stratum with fossil. if mollusks evolved before arthropod, where will their fossils be found.