I'm sorry i do not know the answer, but in the picture you took i noticed how it said hint try clicking on that and I also noticed it said chapter 2 at the top of the page if that is a reading source that has information i would read through that or put a link to that so we can read it and see if it helps us get the most accurate answer.
Cold air is correct answer
Answer:
the one that i can eat
Explanation:
for example, that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, and also that one, etc...
Answer:
Smallpox has had a major impact on world history, not least because indigenous populations of regions where smallpox was non-native, such as the Americas and Australia, were rapidly decimated and weakened by smallpox. During the 18th century the disease killed an estimated 400,000 Europeans each year, including five reigning monarchs, and was responsible for a third of all blindness. After successful vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the global eradication of smallpox in December 1979. Smallpox is one of two infectious diseases to have been eradicated.
Explanation:
Hope this helps!!!