Question : Which of the following is/are 'rain clouds'?

1 Cirrus

2 Nimbostratus

3 Cumulonimbus

4 Altocumulus

Option 1: 1 and 2 only

Option 2: 2 and 3 only

Option 3: 3 and 4 only

Option 4: 1 and 4 only

Question : The study of the relation of animals and plants to their surroundings is called _________.

Option 1: Ecology

Option 2: Ethnology

Option 3: Genealogy

Option 4: Iconology

Question : A molecule in plants comparable to haemoglobin in animals is

Option 1: Cytochrome

Option 2: Cellulose

Option 3: Chlorophyll

Option 4: Carotene

Question : Direction: Which one of the given responses is the meaningful order of the following?

1. Fruit     2. Pollen     3. Corolla     4. Stamen

Option 1: 2, 4, 3, 1

Option 2: 2, 3, 4, 1

Option 3: 3, 1, 4, 2

Option 4: 2, 1, 3, 4

Question : The gas used for artificial fruit ripening of green fruit is - 

Option 1: Ethylene

Option 2: Acetylene

Option 3: Ethane 

Option 4: Methane