Question

1- Which one is polyatomic element in the following? 
P4
O2
He
Na

2 - The gastric juice present in our stomach contains ______

3 - _______ are basic building blocks of any substance.

4 - Rhizopus reproduces by_____

5 - Grasses reproduce by_______

6 - Spirogyra grows and forms a film on the surface of water called ______

7 - Flowers which consists of only one type of sex organs are called ______






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Answer 1

Answer:

1. * Phosphorus

*Oxygen

*Helium

*Sodium

2.Hydrochloric acid, pepsin, mucus.

3.Food.

Answer 2

Answer:

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