Question : The release of which of the following in ponds and wells helps in controlling mosquitoes?

Option 1: Dogfish

Option 2: Crab

Option 3: Gambusia fish

Option 4: Snail

Question : Iodine value is used to estimate

Option 1: Hydroxyl groups in oil

Option 2: Alkali content in oil

Option 3: Unsaturation in oil

Option 4: The carboxylic group in the oil

Question : Which of the following is a renewable resource?

Option 1: Coal

Option 2: Mineral Oil

Option 3: Natural gas

Option 4: Forests

Question : Directions: Which one of the given responses will be a meaningful order of the following?
1. Key  2. Door  3. Lock  4. Room

Option 1: 4, 2, 1, 3

Option 2: 1, 2, 3, 4

Option 3: 1, 3, 2, 4

Option 4: 1, 2, 4, 3

Question : Directions: Which one of the given responses is the meaningful order of the following?
1. Brahmaputra
2. Atlantic
3. Chilka
4. Bay of Bengal

Option 1: 2, 4, 1, 3

Option 2: 2, 4, 3, 1

Option 3: 3, 1, 4, 2

Option 4: 3, 4, 2, 1