Miki's answer to Justin's Primary 5 Maths Whole Numbers Singapore question.

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Miki
Miki's answer
4 answers (A Helpful Person)
As the distance between the lamp and the plant increases from 0cm to 10cm, the amount of gas Z collected remains the same.

As the distance between the lamp and the plant increases above 10cm, the amount of gas Z collected decreases.

Fyi: CV is the distance between lamp and plant because you change the distance during experiment, shown on the x axis. MR is the amount of gas Z (changes during experiment as CV changes)