Question

achoo!! do you or people you know suffer from hay fever allergies? if so, does it seem that hay fever symptoms seem to get worse and worse every year? you've probably heard a lot about global climate change and rising levels of carbon dioxide (co2) in the atmosphere. but, could such environmental changes affect people's allergies? many scientists are exploring this question today. in this activity, you will evaluate some of the studies being done and the data that's been collected.

Answer 1

Many people find their hay fever symptoms dwindle as they age, although no one knows why. But allergies can and do get worse over a lifetime, and there are reports of people who are middle-aged and older suddenly developing hay fever has never been sensitive to pollen before.

Step-by-step explanation:

it was my answer years ago and i got a 100