What countries are in their fall season right now? What countries are in their Spring?

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Compare the quantity in column a with the quantity in column b. pa p a is tangent to the circle at a. column a column b ap a p ax a x question 4 options: the two quantities are equal. the quantity in column a is greater. the relationship cannot be determined from the information given. the quantity in column b is greater.

Which two nations are doing the most to combat their environmental issues?