Question

a.
A. Choose the correct option.
1. What is the role of a catalytic converter?
It converts air into water.
b. It converts carbon dioxide into oxygen.
C.
It converts carbon monoxide into carbon dioxide.
d. It converts sulfur dioxide into sulfur.
2. Which chemical is used to kill microorganisms or bacteria in the water?
a.
Alum
b. Charcoal
Chlorine
lime
3. The process of removing floating rubbish such as plant material and other solids from water is calles
b. flocculation
sedimentation
d. filtration
a screening
4.
Chemical runoff from fields and industries adds nutrients to water and this process is called
b. eutrophication
chlorination
leaching
d. flocculation

5. Ozone depletion leads to
a. global warming b. acid rain

skin cancer
d.
corrosion​

Answer 1

Explanation:

5 ) SKIN CANCER

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