Amarbel is an example of

If iodine is dropped on the boiled leaf it gives blue-black colour due to the presence of

Cud is the name given to the food of ruminants which is

Products of a neutralisation reaction are always

The arboreal animal among the following is

The bacteria Rhizobium lives in the roots of ...........

Are the days shorter in winter than in summer?

Why is difficult of force the paper ball into the bottle?

Can you say why your parents insist that you should eat regularly?

Does sweat serve any other function?

Unscramble the following terms related to modes of nutrition:
(i) RASPAEIT,(ii) ROPEHYSTAp, (iii) TOROPHAUT, (iv) SIBIOMSIS.

Explain the mode of feeding of starfish.

What type of substance is formed when a metal oxide is dissolved in water ? What are these generally called?

What is the importance of breathing.

Why do we cover plug pin holes which are within the reach of children with cellotape or plastic cover when not in use?

Name any four useful products other than wood, which we get from forests.

Mention the period proclaimed as the International Decade for action on Water for Life.

Vivek went to visit his grandfather in village where he saw that his grandfather's field of wheat is infected with fungus but no one is aware of this. Vivek told him that he should use an antifungal agent in his fields to stop this infection?
(a) What is fungus?
(b) Can fungus only cause disease or can it be helpful also?
(c) What values are shown by Vivek?

What are chemical fertilizers? Write their harmful effects

How will you prove that light travels in straight line?

Write differences between decomposers and scavengers.

The terms sewage, sewers and sewerage are interlinked with each other. Can you explain, how?

Complete the table given below of the contaminant survey.

Complete the paragraph related to the history of silk moth by filling in the blanks.
The_______(a)________silk moth lays_______(b)__________, from which hatch _______(c)_______called_______(d)_________or________(e)_______.They grow in size and when caterpillar is ready to enter the next stage of its life history called ________(f)_______, it first weaves a covering to hold itself, which is known as________(g)_________..