Final answer:
The assertion is true; Paraguay can experience frost in June because it is situated in the Southern Hemisphere where the seasons are reversed compared to the Northern Hemisphere.
Step-by-step explanation:
The statement that in Paraguay it sometimes frosts in June is true. This can seem counterintuitive to those in the Northern Hemisphere, where June is typically associated with summer warmth.
However, because Paraguay is located in the Southern Hemisphere, its seasons are opposite from those in the Northern Hemisphere.
In June, the Sun is north of the celestial equator, providing longer and more direct sunlight to the Northern Hemisphere.
Consequently, this is a period of shorter days and less intense sunlight for the Southern Hemisphere, meaning places like Paraguay can experience colder conditions, including frost.
Furthermore, the influence of large bodies of water tends to moderate the climate, making it less extreme; however, this effect is less pronounced in Paraguay, allowing for colder temperatures and potential frost events in June.