SSC (English Medium) 9th Standard - Maharashtra State Board Question Bank Solutions

Give scientific reasons.

Why are naphthalene balls kept with clothes to be put away?

Write the name of microbes found in the following food material.

Yoghurt

Complete the statement using the proper option from those given below. Explain the statement.

Leguminous plants can produce more proteins due to ______.

Complete the statement using the proper option from those given below. Explain the statement.

Yeast reproduces asexually by the  ______ method. 

How does a computer work?

Fill in the blank to complete the statement. Justify the statement.

While working with a computer we can read the information stored in its memory and perform other actions in ______ memory.

Write the name of the following tissue.

Tissue joining muscles and bones.

Identify the odd word and explain why it is odd. 

Why are optical telescopes located in uninhabited places on mountains?

What are the difficulties in using ground-based optical telescopes? How are they overcome?

The biggest optical telescope in India is situated at ______.

Answer the following question in your own words. 

What is meant by ‘chromosome’? 

The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.

Chromosomes are mainly made up of ______.

The chemical name of baking soda is ______.

Write the chemical formula.

Baking soda

Fill in the blank and explain.

The velocity of sound in steel is ______ than the velocity of sound in water.

The incidence of ______ in daily life shows that the velocity of sound is less than the velocity of light.

The speed of sound in air at 0°C is 332 m/s. If it increases at the rate of 0.6 m/s per degree, what will be the temperature when the velocity has increased to 344 m/s?

Nita heard the sound of lightning after 4 seconds of seeing it. What was the distance of the lightning from her?

(The velocity of sound in air is 340 m/s.)