Question

what is 'variable valeny? give one example.​

Answer 1

Answer:

Variable renewable energy (VRE) or intermittent renewable energy sources (IRES) are renewable energy sources that are not dispatchable due to their fluctuating nature, such as wind power and solar power, as opposed to controllable renewable energy sources, such as dammed hydroelectricity or biomass, or relatively ...

Answer 2

Answer:

Certain elements combine with other atoms , donating, accepting or sharing electrons in different proportions depending on the nature of the reaction.

For eg: iron combines with oxygen to from ferrous oxide as well as ferries oxide.

Explanation:

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