SSLC (English Medium) कक्षा ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Outline the flow charts of Phylum Chordata.

Describe the characteristic features of different Prochordates.

In which stage of mitosis the chromosomes align in an equatorial plate? How?

The structural and functional unit of the kidney is ______.

The common passage meant for transporting urine and sperms in male is ______.

Higher Order Thinking Skill

Name the blood vessel that 

1. enter malphigian capsule and 
2. leaves malphigian capsule.

The sprouting of onion and potatoes can be delayed by the process of ______.

Explain any two methods of food preservation.

One of the means of indirect transmission of a disease is ______.

______ is a vector of viral disease dengue.

Name the vector of the malarial parasite. Mention the species of malarial parasite which cause malignant and fatal malaria.

Assertion: Dengue can be treated by intake of antibiotics.

Reason: Antibiotics blocks the multiplication of viruses.

What is common to both direct and alternating current?

In India, the frequency of the alternating current is, ______.

The device used to convert AC to DC is called ______.

Define the following:

Frequency

Define the following:

Rectifier

Explain in detail the application of electromagnets.

Unlike magnetic poles ______ whereas like poles ______.

Assertion (A): When 2 long parallel wires, hanging freely are connected in parallel to a battery, they come closer to each other.
Reason (R): Wires carrying current in opposite directions repel each other.