Will give brainliest to the first answers! : )

man's impact on the environment
11. how long does it take co2 to leave the atmosphere?

true or false
since the last century, the sea level has risen by 20.7 inches.
smog can cause death.

light
12. what types of materials are:
a) luminous
b) non-luminous

true or false
special lenses worn during solar eclipses are solar filters.
only one side of the moon is seen from earth.
the moon looks red because of dust in the moon's atmosphere.