English Medium कक्षा ९ - CBSE Question Bank Solutions

Classify the following based on number of chambers in their heart.

Rohu, Scoliodon, Frog, Salamander, Flying lizard, King Cobra, Crocodile, Ostrich, Pigeon, Bat, Whale

Classify Rohu, Scolidon, Flying lizard, King Kobra, Frog, Salamander, Ostrich, Pigeon, Bat, Crocodile, and Whale into the cold-blooded/warm-blooded animals.

Give True (T) and False (F)

Non flowering plants are called Cryptogamae.

Give True (T) and False (F)

Seeds contain embryo

Differentiate between flying lizard and bird. Draw the diagram.

List out some common features in cat, rat, and bat.

Why do we keep both snake and turtle in the same class?

According to the third law of motion, action and reaction

Calculate the average density of the earth in terms of g, G and R

A cube of side 5 cm is immersed in water and then in a saturated salt solution. In which case will it experience a greater buoyant force. If each side of the cube is reduced to 4 cm and then immersed in water, what will be the effect on the buoyant force experienced by the cube as compared to the first case for water. Give a reason for each case.

A ball weighing 4 kg of density 4000 kg m^–3 is completely immersed in water of density 103 kg m^–3 Find the force of buoyancy on it. (Given g = 10 m s^–2)

How is the power related to the speed at which a body can be lifted? How many kilograms will a man working at the power of 100 W, be able to lift at a constant speed of 1 m s^–1 vertically? (g = 10 m s^–2)

Draw a sketch of Bohr’s model of an atom with three shells.

Describe Bohr’s model of the atom.

Compare all the proposed models of an atom given in this chapter.

What are the functions of areolar tissue?

Name the tissue that connects muscle to bone in humans.

Name the tissue that stores fat in our body.

Name the connective tissue with a fluid matrix.

Identify the type of tissue in the bone.