Exposure to heat, sound and light

A human’s threshold is only 90 decibels.

• True

• False

Cataract may lead to blindness when left untreated.

• True

• False

Dehydration may cause weakness, nausea or heat stroke.

• True

• False

Re-hydration is important especially during hot summer days.

• True

• False

Cataract is the reddening of eye lenses that may lead to blurry vision.

• True

• False

Exposure to loud and long-lasting sound may lead to loss of hearing.

• True

• False

Noise and sudden explosion of loud sound may affect the behavior.

• True

• False

The body defends itself against ultraviolet rays with the help of melanin causing the skin to darken.

• True

• False

Too much sun exposure causes ultraviolet rays to reach the inner layers of the skin leading to sunburn.

• True

• False

Exposure to noise pollution may also cause a person to feel irritated and uneasy.

• True

• False