Question

plz tell me all the answer to don't know please leave the answer class 7 science plz plz tell fast ​

Answer 1

Answer:

2] digestion in amoeba. 3] (à) symbols of some common circuit elements

Explanation:

1] Acids. | Bases

vinegar. | antacid tablets

fruits. | soap

milk. | coffee

curd. | cigarettes

tamarind. | tonic water

grapes | baking soda

tea. | soap

apples. | toothpaste

carbonate drinks | washing powder

unripe mangoes. | detergent

3] (b) A simple electrical circuit consists of a power source, two conducting wires (one end of each being attached to each terminal of the cell), and a small lamp to which the free ends of the wires leading from the cell are attached.