Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology skeleton, joints and muscles skeleton our skeletal system and the skin skeleton - movement and locomotion

A curved bone is structurally designed to

  1. Accommodate easily in body

  2. Absorb the stress of the body weight at several different points so that the stress is evenly distributed

  3. Provide more area for attachment of muscles

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 Long bones are longer than they are wide and they are slightly curved for strength.
– A bone that is curved is structurally able to absorb the stress of the body at several points so the stress will be evenly distributed.
– The straight bone would not be able to evenly distribute the weight of the body and the bone would break more easily.
– Long bones are shaped like tubes with rounded ends that are designed to fit into other bones to form joints.
– The ends of long bones are filled with spongy bone; this makes them light but strong.
– Long bones can be found in the thigh, lower leg, toes, arms, forearms and fingers.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

As one goes up from earth's surface, the temperature of air:

  1. increases

  2. decreases

  3. first increases and then decreases

  4. first decreases and then increases
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In the atmosphere, temperature decreases with altitude in the troposphere, but then increases in the stratosphere due to ozone absorption of UV radiation.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

Fog can be defined as:

  1. Smoke from cigarette

  2. Polluted air from vehicles

  3. Clouds forming close to the ground

  4. A combination of smoke and dust particles
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fog is a thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface which obscures or restricts visibility.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

Which of the following statements is true regarding the properties of air?

  1. It is a good conductor of electricity

  2. It is a good conductor of heat

  3. It is translucent in nature

  4. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Air is a good conductor of heat.

It is a good conductor of electricity.
It is translucent in nature.
Hence, option $(D)$ is the answer.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

Which of the following can show the direction of wind ?

  1. Anemometer

  2. Wind wane

  3. Wind mill

  4. Barometer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Anemometer: Used to measure the speed of the wind.


Wind wane: Used to show the direction of wind.


Windmill: Converts wind energy to rotational energy.

Barometer: Used to measure atmospheric pressure. 


Hence, option B is correct.

Multiple choice biology properties of natural resources the concept of bernoulli's principle variations in atmospheric pressure air exerts pressure

Which of the following is not true about air?

  1. air can be separated into components

  2. it can be liquefied
  3. liquid nitrogen has a b.p of $-196^\circ C$

  4. air has a chemical formula
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The statement which is not true about air is that it has a chemical formula. Air has no chemical formula. It is a mixture of gases.