Why are protists considered both and harmful organisms?

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.