Leather is a durable and flexible material created by tanning animal rawhide and skins.

The major ingredient of leather is Collagen.

Tibia and fibula are the two long bones located in the lower leg.

A lactometer is an instrument that is used to check for the purity of milk by measuring its density.

Glucose  has the molecular formula C6H12O6.

Glucose syrup is a sugar made from the hydrolysis (breaking down) of starch. 

Mitochondria is known as powerhouse of cell because it serves as site for synthesis of Adenosine Triphosphate (ATP), the energy currency of cell, through the process of aerobic cellular respiration.

ATP serves as energy currency for different cell activities.

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A cell consists of three parts:

1.      The cell membrane,

2.      The nucleus, and,

3.      Between the two, the cytoplasm.

• One light year is equal to the distance that light travels in one year (it is about ten trillion kilometers, or six trillion miles).
• A light year is a unit of distance. The distance light travels in one year is known as light year. 
• The light-year is a unit of length used to express astronomical distances and measures about 9.46 trillion kilometres (9.46 x 1012 km) or 5.88 trillion miles (5.88 x 1012 mi)

 3j-3k

• A pair consists of two equally opposite forces acting on two different but parallel lines of action.
• The moment of  force depends on the distance from the fulcrum and the magnitude of the force, but the moment of the pair is the net effect of the two moments of force.
  

• In plants, the process of pollination enables angiosperm.
• ..
• Flowering plants or angiosperms reproduce sexually by the process known as pollination.
• In the process pollination the pollen from the male anther is transferred to the female stigma
• ..
• There are two types of pollination: Self-Pollination. Cross-Pollination

The average normal body temperature is generally accepted as 98.6°F (37°C).

A temperature over 100.4°F (38°C) most often means you have a fever caused by an infection or illness.

Jupiter is the fifth planet from the Sun and the largest in the Solar System.

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1.     Mercury

Ø The smallest and fastest planet, it zips around the Sun in only 88 Earth days.

2.     Venus

Ø Venus’ thick atmosphere makes it the hottest planet in our solar system.

3.     Earth

Ø The only planet in our solar system with liquid water on the surface.

4.     Mars

Ø Mars was a wet and warm planet billions of years ago.

5.     Jupiter

Ø The largest planet, its dark red spot is a storm larger than Earth.

6.     Saturn

Ø Saturn has the brightest, most massive and most complex ring system of any planet.

7.     Uranus

Ø Uranus is tipped on its axis by almost 90-degrees.

8.      Neptune

Ø Neptune was the first planet discovered through mathematical calculations, rather than observation.