Read the following statements carefully and select the correct answer from the code given below:
1. Dugong (Dugong dugon) is an herbivorous mammal.
2. Dugongs are listed as Critically endangered on the IUCN Red List of Threatened Species.
3. Recently, an announcement was made by Tamil Nadu State government for the set-up of Dugong conservation reserve.
Which of the statements given above is/are correct?
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Read the following statements carefully and select the correct answer from the code given below:
1. Dugong (Dugong dugon) is an herbivorous mammal.
2. Dugongs are listed as Critically endangered on the IUCN Red List of Threatened Species.
3. Recently, an announcement was made by Tamil Nadu State government for the set-up of Dugong conservation reserve.
Which of the statements given above is/are correct?
The presence of certain minerals is essential in water, however, if found in excess they can be harmful to our body. In this context, which of the following statements are correct?
1. Deficiency of fluoride in drinking water causes diseases such as tooth decay.
2. Excessive sulphate in drinking water causes laxative effect.
3. Excess lead in drinking water can cause disease such as ‘blue baby’ syndrome.
Select the correct answer using the code given below.
Which of the following is NOT an example of ‘Autoimmune Disease’?
Consider the following sources of protein:
1. Meat
2. Fish
3. Egg
4. Milk
Select the correct sequence of the sources of protein mentioned above in human diet in terms of maximum protein content:
Vectors are living organisms that can transmit infectious pathogens between humans, or from animals to humans. The commonest vectors we all know are mosquitoes. Which among the following vector borne diseases are caused by mosquitoes?
1. Yellow Fever
2. Lymphatic Filariasis
3. Zika Fever
4. Japanese Encephalitis
Select the correct answer using the code given below:
With reference to the uses of ‘concave mirrors’, read the following statements carefully:
1. They are commonly used in vehicles headlights to get powerful parallel beams of light.
2. They are often used as shaving mirrors to see a larger image of the face.
3. They are fitted on the sides of the vehicle to have a wider field of view.
4. Large concave mirrors are used to concentrate sunlight to produce heat in solar furnaces.
Which of the statements given above is/are correct?
Match the following pairs with reference to different types of ‘Phyla’ with their most distinctive features:
PHYLA | MOST DISTINCTIVE FEATURE |
1. Ctenophora | A. Body segmentation like rings. |
2. Platyhelminthes | B. Comb plates for locomotion. |
3. Annelida | C. Presence of jointed appendages. |
4. Arthropoda | D. Flat body, suckers |
Select the correct answer using the code given below.
Manure contains large quantities of organic matter and also supplies small quantities of nutrients to the soil. In this context, consider the following statements:
1. The organic matter in manure helps in improving the soil structure.
2. It increases the water holding capacity in sandy soils.
3. It causes water logging in clayey soils.
Select the correct answer using the code given below:
Which of the following phenomena are caused due to ‘atmospheric refraction’?
1. Flickering of objects seen through a turbulent stream of hot air rising above a fire.
2. The reddening of the sun at sunrise and the sunset.
3. The apparent flattening of the Sun’s disc at sunrise and sunset.
4. The Sun is visible to us about 2 minutes before the actual sunrise, and about 2 minutes after the actual sunset.
Select the correct answer using the code given below.
Consider the following statements:
1. Cold-blooded animals do not have the capacity to regulate their body temperature.
2. Amphibians are cold-blooded animals and reptiles are warm-blooded animals.
Which of the statements given above is/are correct?