Question

1:What does this indicate
2:Would the mass of soil sample after heating be the same as that of before heating? Explain​

Answer 1

Answer:

2 - mass of soil sample after heating be changed because when we heat the soil water converts into water vapour . after soil heated the mass of soil change as compared to mass before ( when soil sample taken ) .

1 - it indicates evaporation of soil .

Explanation:

I hope it was helpful for you..

Answer 2

i) it is a experiment to know the moisture of soil and the tube indicate soil water for experiment and it is heat burning water is their so it is a soil moisture experiment

ii) before:the sample of water the moisture is mixed with the water

after:we know that heating will kill germs like that

the heating process will remove the unwanted dust and the moisture come up that is shown in the picture the bubbles that are in the test tube that are the vapour of moisture

I hope it help you if it correct mark me brainlest and follow me