Atemperature inversion occurs
a) when warmer air traps cooler air near the ground
b) when cooler air traps warmer air near the ground
c) whenever smog is present
d) all of these

Sarah is sitting at the top of the slide in the schools playground. which will increase sarah’s kinetic energy a- an additional child is added to the top of the slide. b- sarah is pushed and moves down the slide. c- sarah climbs down the ladder and off the slide. d- the ladder is moved to the other side of the yard.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

During binary fission, what events must occur before the cell splits into two new cells?