A) recycling
B) harmful substance in the environment
C) clean air and water

A) birds singing
B) loud music and traffic
C) a gentle breeze.

A) to look good
B) to have shiny teeth.
C) to remove plague and prevent cavities

A) drive more cars
B) ride a bicycle
C) burn trash

A) it makes them happy.
B) it can cause stress and hearing loss
C) it help them sleep

A) both a and b.
B) after petting a dog
C) after using the bathroom

A) drinking water
B) watering plants.
C) throwing garbage into rivers

A) by shouting louder.
B) by covering your ears or using earplugs
C) by listening to loud music

A) sharing a tooth brush
B) not bathing regularly.
C) washing hands before mea

A) improved memory
B) difficulty concentrating
C) clean thinking