27
Q:

Damage to hearing is caused by sounds which exceed

A) 70 decibels B) 80 decibels
C) 100 decibels D) 120 decibels

Answer:   D) 120 decibels



Explanation:

High frequency sound attacks the tympanic memberance and makes it defective. 120 decibels is too high a pitch to be heard and therefore it impairs the hearing ability.

Subject: Biology
Q:

Sulphur Dioxide pollution is indicated by an excessive growth of which of the following?

A) Algal Blooms B) Lichens
C) Bryophytes D) Protozoa
 
Answer & Explanation Answer: B) Lichens

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Q:

Which type of cell, skin is made up of:

A) Epidermal cells B) Connective tissue
C) Permanent tissues D) Parenchyma
 
Answer & Explanation Answer: A) Epidermal cells

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0 0
Q:

........... connects muscle to the bones.

A) Cartilage B) Areolar
C) Ligaments D) Tendons
 
Answer & Explanation Answer: D) Tendons

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Q:

......... reproduces by binary fission

A) Amoeba B) Liverfiuke
C) Plasmodium D) Planaria
 
Answer & Explanation Answer: A) Amoeba

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Q:

The secretion from the prostate gland enters into the:

A) Kidney B) Ureter
C) Urethra D) Testis
 
Answer & Explanation Answer: C) Urethra

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Q:

Amoeba belongs to the phylum

A) Protozoa B) Annelida
C) Porifera D) Platyhelminthes
 
Answer & Explanation Answer: A) Protozoa

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Q:

The first step of process of nutrition is the breakdown of glucose into a three-carbon molecule called ______.

A) pyruvate B) propano
C) propane D) methanol
 
Answer & Explanation Answer: A) pyruvate

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0 1
Q:

Which of the following is a fish?

A) Jelly fish B) Lobster
C) Salmon D) Whale
 
Answer & Explanation Answer: C) Salmon

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