Factful math: Grade 4th-6th
Math skills: Percentage / Circle graph
Related issues: Energy
The total number of BEV (Battery electric vehicle) sold in 2021 was 5 million in the world. How many BEVs were sold in the United States in 2021?
A. 4.5 thousand
B. 45 thousand
C. 450 thousand
NSWER C
5 x 0.09 = 0.45 (million) = 450 (thousand)
Source: IEA, https://www.iea.org/reports/electric-vehicles
Factful math: Grade 4th-6th
Math skills: Interpretation of 100% stacked bar graphs
Related Environmental issues: Water conservation
The Colorado River Basin has been in drought for the last 23 years.
Among three states that depend on the Colorado River for their water sources, which state suffered from drought the most on August 15, 2022?
ANSWER Utah
Source: University of Nebraska-Lincoln, U.S. Drought Monitor
Note: Non-drought, moderate drought, and extreme drought were categorized using intensity index from the U.S. Drought Monitor.
Non-drought: None + D0 (abnormally dry)
Moderate drought: D1 (moderate drought) + D2 (severe drought)
Extreme drought: D3 (extreme drought) + D4 (exceptional drought)
