Question

mera next valentine ka yahi plan...
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what is combustion?​

Answer 1

In present-day schools, students study together in a separate building and teachers are human beings whereas, in the lesson, the school was at home and the teacher was mechanical.

Explanation:

difference between future school and now schools ?(the fun they had)

Answer 2

Answer:

Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.

mera next valentine ka yahi plan.. - mera bhi xD xD xD