The plants have 'factories' to manufacture their food and these factories are nothing but leaves . In the case of fruit trees , the leaves acquire carbon dioxide gas from air and the water from soil to prepare their food which is sugar . This process of making food is called " PHOTOSYNTHESIS" .
Photosynthesis equation
In the case of those plants , which have no sugar, the food is in the form of starch and proteins . The main apparatus which helps the leaves to manufacture food are the green bodies called " CHLOROPLASTS " and they in turn acquire energy from the sun.
The roots of the take water from the soil and then the water circulates through the stems and branches and then into the veins of the leaves . These veins carry the food which the leaves have prepared . The leaves do away with their excess carbon dioxide by emitting oxygen , which in turn sustains human life .
It is believed that there was a time when there were no plants on the Earth . According to the scientists , the protoplasm , the living material that is found in both plants and animals , appeared on the Earth in the form of tiny specks , hundreds of millions of years ago.
These protoplasm specks that became plants had one cell in the beginning and it is only later , they formed groups of cells . they grew in water and we call them 'algae'.
algae
Most of the plants that we find today are evolved from algae . But there are some which came out of sea and developed rootlets which could anchor them in the soil , along with little leaves . These plants are called as mosses and ferns
Mosses
Ferns
Tree fern
Earlier , the reproduction in plants was either by simple cell division or by means of spores , little dust like cells resembling seeds . In course of time , some of these plants developed flowers that produced true seeds and thus the process goes on in the nature .
Friday, 2 January 2015
RHINO SHIELD
Rhino shield screen protectors absorbs 5 times more impact energy than normal screen protectors.This protect shield is providing number of layer are scretch resistance layer, impact dipersion layer, impact damping layer, High strength layer
Rhino shield is available for these devices
IMPACT RESISTANCE
https://www.youtube.com/watch?v=zNM-1HPZ5u
THIN & TRANSPARENT
It has high optical clarity , yet it is as thin as three sheets of printer paper .
SCRATCH RESISTANCE
Special coating technology provides strong hardness preventing direct scratch damage to your screen.
The scratch proof layer provides a hardness of 3H. This will effectively protect your touch from keys , coins , pens , sharp objects and even from your kittys.
ANTI FINGERPRINT
Oleophobic coating technology keeps the RHINOSHIELD free from fingerprint smudges . Still it is very smooth to touch . This coating not only repels oil and fingerprints but also provides RHINOSHIELD a smooth and silky touch .