Sound — Science STD 8 — Question

State whether the following statements are True or False. Correct the false statements There can be a wildlife sanctuary within a biosphere reserve.

In which zone of a candle flame: Partial combustion of fuel takes place.

Name one ecosystem service provided by mangroves.

Which part of the two has a large vacuole: a plant cell or an animal cell?

Give an example to show that friction depends on the force with which the two surfaces are pressed together.

Name the substance which vibrates in a flute to produce sound.

Yeast is used to prepare food items name them.

Where is the mode of transmission in yellow vein mosaic of okra ?

In which direction do stars appear to move in the sky?

Name the force exerted on a ball of dough to make a flat chapati.