The pH value of saliva after meal is around 5.8 due to the increased activity of bacteria on the food that we eat at any time.

Class 9 Science Terminal Exams MCQ Solutions Class 9th Science Session 2022-23 9th Science Terminal Exam Based MCQ Extra Questions Class IX Science MCQ Extra Questions Answers

Class 9 Science Terminal Exams MCQ Solutions Class IX Science MCQ Extra Questions Answers 9th Science Terminal Exam Based MCQ Extra Questions Class 9th Science Session 2022-23

Epidermal tissue is a plant tissue that covers the leaves, flowers, roots, and stems of plants. Epithelial tissue is a protective tissue in the animal body. Blood is a fluid connective tissue that connects different parts of the body. Glandular ...

Class 9th Science Session 2022-23 Class 9th Science CBSC Sample paper Class 9 Science Terminal Exams MCQ Solutions 9th Science Terminal Exam Based MCQ Extra Questions