Conservation of Plants and Animals — Science STD 8 — Question

A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad (Ignore the frictional force due to air resistance).

Some of the following statement are incorrect. Find the incorrect statement and correct them. Oxides of non-metals and metals are acidic in nature.

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

In which medium sound travels faster: air or iron?

Acidified water is electrolysed by using carbon electrodes. What is produced at cathode and at anode?

An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms. muscular, contact, non-contact, gravity, friction, shape, attraction. The force applied by the archer to stretch the bow is an example of __________ force

Name one component of the triple planetary crisis.

Which life process ensures that a plant of animal species will not disappear from the earth?

Name the biggest cell?

While sieving grains, small pieces fall. Which force pulls them down?