Explanation

The phenomenon of refraction of light is the shift in the path of light as it travels from one medium to another

Explanation

horticulture, the branch of plant agriculture dealing with garden crops, generally fruits, vegetables, and ornamental plants.

Explanation

The guitar is a musical instrument of the chordophone family.

The standard guitar has following six strings:

1. E

2. A

3. D

4. G

5. B

6. E

Explanation

HPP is the alternative to heat processing for fruits and vegetable products .

It gets a significant shelf life extension, keeping fresh and home made taste .

Explanation

 7t

First person distance traveled in time t = 28

 laps = 1

4 laps 

 Distance covered by the second person at time t = 38

 laps 

 First-person speed = 14t

 Second-person speed = 38t

 The two  start from A and B respectively, so they  meet  when there is a difference of 78

 laps. 

 Relative velocity of A and B: 

 = (38t-14t) = 18t

 Time  to complete 78

 laps at this speed: 

 = (78 × 8t) = 7t

Explanation

Solar PV cells generate electricity by absorbing sunlight and using that light energy to create an electrical current.

There are many photovoltaic cells within a single solar panel, and the current created by all of the cells together adds up to enough electricity to help power your home

Explanation

Oceans cover about 70 percent of the Earth's surface and about 97 percent of all water on and in the Earth is saline—there's a lot of salty water on our planet.

Explanation

Giant pandas live in a few mountain ranges in south central China, in Sichuan, Shaanxi and Gansu provinces. They once lived in lowland areas, but farming, forest clearing and other development now restrict giant pandas to the mountains.

Giant pandas

Explanation

island of Sardinia

"Sardine" and "pilchard" are common names for various small, oily forage fish in the herring family Clupeidae. The term "sardine" was first used in English during the early 15th century, it comes from the Italian island of Sardinia, around which sardines were once abundant.

Explanation

Stiffening fibers traverse the jelly and in some jellyfish, the mesoglea can form hardened plates, rather like cartilage, that hinge together.

These plates provide support for the animal and the muscles may attach to these plates,

so they function as a skeleton.

But jelly fish does not have a proper skeleton.