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State whether true or false. If false, correct the statement.
Nitric acid in the stomach kills microorganisms in the food.
Concept: undefined >> undefined
State whether true or false. If false, correct the statement.
Vitamins are required in large quantities for normal functioning of the body
Concept: undefined >> undefined
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State whether true or false. If false, correct the statement.
Vitamin C is a water soluble vitamin
Concept: undefined >> undefined
Fill in the blanks with suitable answers.
| Vitamins | Dietary Source | Deficiency Disease |
| Calciferol | ______ | Rickets |
| ______ | Papaya | Night blindness |
| Ascorbic acid | ______ | ______ |
| ______ | Whole grains | Beriberi |
Concept: undefined >> undefined
What factors are required for the absorption of Vitamin D from the food by the body?
Concept: undefined >> undefined
Aestivation is an adaptation to overcome the cold condition.
Concept: undefined >> undefined
Roots grow very deep and reach the layers where water is available. Which type of plants develops the above adaptation? Why?
Concept: undefined >> undefined
List out the adaptations of xerophytes.
Concept: undefined >> undefined
How many meters are there in 1 nanometer?
Concept: undefined >> undefined
The Kelvin is the basic unit of ______.
Concept: undefined >> undefined
Distance between Chennai and Kanyakumari can be found in ______.
Concept: undefined >> undefined
Micron is also known as a micro-meter.
Concept: undefined >> undefined
Match the following:
| Column-I | Column-II | |
| 1. | Electric Current | radian |
| 2. | Luminous intensity | ampere |
| 3. | Angle | steradian |
| 4. | Solid angle | candela |
Concept: undefined >> undefined
Match the following:
| Column-I | Column-II | |
| 1. | Length | s |
| 2. | Mass | m |
| 3. | Time | k |
| 4. | Temperature | kg |
Concept: undefined >> undefined
Match the following:
| Column-I | Column-II | |
| 1. | Millimeter | 10-15 m |
| 2. | Nanometer | 10-3m |
| 3. | Angstrom | 10-9m |
| 4. | Fermi | 10-10m |
Concept: undefined >> undefined
Match the following:
| Column-I | Column-II | |
| 1. | Temperature | Beam balance |
| 2. | Mass | Ruler |
| 3. | Length | Digital clock |
| 4. | Time | Thermometer |
Concept: undefined >> undefined
Convert the following units into meters.
Concept: undefined >> undefined
A bus travels, a distance of 20 km from Chennai central to the airport in 45 minutes. What is the average speed?
Concept: undefined >> undefined
Why did the actual speed differ from the average, speed?
Concept: undefined >> undefined
Which of the quantities have the same SI unit?
Concept: undefined >> undefined
