Question 1 Ozone prevents harmful X-rays from reaching earth.
( True or false )

Question 2
Ozone layers loss is caused by chlorofluorocarbons.
( true or false)

Ascientist is studying muscle twitches in chicken quadriceps. to activate the muscle, he needs to provide stimulus to the

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis

Which soil would most likely be found in the arctic? andisols gelisols histosols spodosols