The Fundamental Unit of Life — Science STD 9 — Question

Starting from rest objects 1 falls freely for 4 seconds and object 2 falls freely for 8 seconds.Compared to object 1, object 2 falls

Which of the following statement is incorrect?

1. The particles of matter are very, very small.
2. The particles of matter attract one another.
3. The particles of some of the matter are moving constantly.
4. The particles of all the matter have spaces between them.

Waves from sitar wire and veena wire distinguished by (of same frequency):

The technique used to obtain variety with high yield and other desirable characters is:

1. Intraduction
2. Selection
3. Hybridization
4. Both (a) and (b).

Short branched process coming out of a soma of neuron are:

Fat storing _______ tissue is found below the skin and between internal organs.

Dolphins, bats and porpoise use ……… for navigation and location of food in the dark.

Positive charge in an atom is:

Mass can neither be created nor destroyed. This is in agreement with which law of chemical combination:

The inertia of an object tends to cause an object: