Explanation

Explanation

Weight of the adult men brain $=49$ ounces
So, $49$ ounces
$=\frac{49}{16}$  pounds
$=3.0625$ pounds
Therefore, the weight in pounds is $3.0625$.

Explanation

Carbon dioxide is a colorless and non-flammable gas at normal temperature and pressure.

The bubbles in fizzy drinks are caused by carbon dioxide (CO2).

Soft drink manufacturers add fizz by dissolving carbon dioxide into the water at high pressures.

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Explanation

All plants move Anticlockwise around Sun.

All plants move anticlockwise around their axis.

Earth rotates its axis from West to East.

Explanation

• Bats can also fly in the dark because they are capable of taking the help of   Ultrasonic Waves 
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• concept:
• They are guided by ultrasonic waves produced by them.
• Bats are guided by ultrasonic waves which they produce and enable them to fly in the dark
  
  

Explanation

Geographers broadly divide the Earth into three separate climate zones: 

1. Tropical (near the Equator)
2. Temperate (north and south of the Equator)
3. Polar (the farthest Northern and Southern regions)

Explanation

The acceleration due to gravity is 9.8 m/s² downward.

This force acts on the ball throughout its motion.

This pulling it back to the ground after it is thrown upwards.

Explanation

Tooth enamel is the white, visible part of the tooth and it is also the hardest part of the human body.

 The main mineral composition is hydroxyapatite, a crystalline of calcium phosphate.

Explanation

An optical fiber is a flexible,

transparent fiber made by drawing glass  or plastic

To a diameter slightly thicker than that of a human hair.

Explanation

The unit of gas billing is typically the British Thermal Unit (BTU), which measures energy.

It quantifies the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.