0620/11 Chemistry May Jun 2010 Online Test | Cambridge IGCSE MCQ
CIE
IGCSE
Chemistry (0620)
شهریور
2010
مشاهده نمونه سوال
شامل مباحث:
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
45 دقیقه

پیش نمایش صفحه اول فایل
Unwanted vegetation is sometimes placed in a bin where it decomposes. The compost formed is used to fertilise soils.
Which gas is likely to be present in a higher percentage inside the bin than in the air outside the bin?