Do you know what is the percentage of oxygen and carbon dioxide during the process of exhalation and inhalation

When we inhaled the oxygen is about 20 to 21% of the air,and the carbon dioxide is negligible.
   Where as during exhaltion process the exhaled oxygen is about 16 to 17% of air exhaled and carbon dioxide is about 4%.


Why the colour of tomato is red?

Since tomato is very popular fruit as because of widely used as edible material such as in Salad,vegitable and also as fruit.
So we want to discuss it’s colour and their binomial name.
It’s binomial name is Solanum lycopersium.


It is edible,often red berry-type fruit. Tomatoes contain two types of pigments for photosynthesis-chlorophyll which is green,and lycopene,which is red. When tomatoes start to grow,they contain much less lycopene than chlorophyll,which gives them their green colour.
But when harnest season arrives,the days shorter and temperatures drop,causing chlorophyll to dissolve and lycopene to take over the shade of the fruit. During this time,sugar levels rise,acid levels drop,and the tomato becomes ready to eat.


But by artificially it is ripen by using repening agent called ethylene gas.


We watched in our environment that there are three types of animals on their eating habit.

Herbivores:-The animal eating plant product comes under this categories.


Omnivores:- The animal eating animals and plants comes under this categories.



Carnivores:- The animal eating animals comes under this categories.


Do you know where honey comes from, or how it is produced?

Have you seen a beehive where so many bees keep buzzing about? Bees collect nector(sweet juices) from flowers,convert it into honey and store it in their hive.Flowers and their nector may available only for a plant of the year. So,bees store this nector for their use all through the year. When we find such a beehive, we collect the food stored by the bees as honey.

Key words :- Beehive          Bees         Nector          Hive

Beehive– A beehive is an inclosed structure in which some honey bee species live and raise their young. There are two types of beehive natural and artificial.


Natural beehive


Artificial Beehive

Nector:-It is a sugar-riched liquid produced by plants in glands called nectaries,either within the flowers with which it attracts pollinating animals. Nector is an ecologically important item,the sugar source of honey,it is also used in agriculture and horticulture.




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