How Seasons Occur Part 2 — Geography STD 7 — Question

Why are some fruits and vegetables harmful to health?

Name the four seasons of Europe and North America.

Which of the following factors could be related with the change in the position of the shadow of the stick & the difference in the duration of daytime?
(i) Rotation of the earth
(ii) Distance between the earth & the sun
(iii) Revolution of the earth.
(iv) The axis of the earth.

What is Pisciculture?

Try this: Without touching the roll of the paper on the table, what can be done to move the paper rolls to the other end of the table?

What are the annual rainfall in the Equatorial region?

Why had the primitive man to wander in the forest in the past?

Define the following: Waves:

Define the following: Tidal range:

Think about it:

Like sunlight and moonlight, is there anything called the earth light? If yes, where do you think it is found?