CIE Biology Paper-1: Specimen Questions 108 - 109 of 109

Question number: 108

MCQ▾

Question

If pH of a blood is higher than 8 it will refer as-

Choices

Choice (4) Response
a.

Acidosis

b.

Neutralization

c.

Buffer solution

d.

Alkalosis

Answer

d.

Explanation

The pH of any fluid is the measure of the hydrogen ion (H-) concentration. Alkalosis occurs when body has too many bases. It occur due to reduced blood levels ofCO2, which is an acid. It can also occur due to increased blood levels of bicarbonate, which is a base.

Question number: 109

MCQ▾

Question

The unwanted sound, which is released into the environment is called as-

Choices

Choice (4) Response
a.

Air pollution

b.

Thermal pollution

c.

Noise Pollution

d.

Marine pollution

Answer

c.

Explanation

The noise pollution is the undesirable sound, which release into the environment. It disturbs the human being and cause an adverse effect on the mental and psychological wellbeing. It is measured in the units of decibels and is denoted by the dB.

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