Did prices of key commodities suddenly increase in 2021—ever since President Joe Biden took office?

The five commodities listed in a social media post all experienced steep drops in prices in the early months of 2020 and then turned around, with prices climbing in the second half of 2020 and into 2021.

The global COVID-19 pandemic coupled with issues unique to each item produced many unprecedented swings in prices.

Lumber showed the most dramatic price increase. There are many factors for its sharp rise but it's basically high demand and short supply.

Three factors drove up gas prices in early 2021, according to Forbes: rising oil prices, loss of refining capacity and transition to summer gasoline. And AAA reports 60% more drivers were expected on the road during Memorial Day weekend than in 2020, contributing to higher gas prices.

Coal, wheat and corn prices also were affected by demand during the pandemic and for grains, other factors including weather.