Answer:
plastic bags
food wrappers
Explanation:
these are the two things that pollute the air.
Answer:
Target Heart Rate
Explanation:
Target heart rate is generally expressed as a percentage (usually between 50 percent and 85 percent) of your maximum safe heart rate. The maximum rate is based on your age, as subtracted from 220. So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.
It is a type of fin that is on a shark dolphin etc its a special type of fin
