What is the wingspan of a 3 year old

What is important to study for nios grade 12 chemistry? i have only one month left.

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d