Scientists have developed a new type of solar cell with an efficiency of over 40 %. The efficiency of the solar cell was confirmed independently by other scientists.
Suggest why it was important to confirm the efficiency independently.

According to Carl Sagan's Baloney Detection Kit notes

"Whenever possible there must be independent confirmation of the facts"

Independent confirmation by other scientist is to ensure that the observation of the over 40% efficient solar panel is repeatable

It is also important to avoid accepting the given mandates at face value and accepting that the scientist considered all factors when taking the results or that the original developers has assigned others to check their findings before the introduction of the new type of solar cell

Explanation:

less than one you can't create energy