Which of the following correctly pairs a pollution indicator with the condition it indicates?
1 )
Bushy lichens indicate high levels of air pollution.
2 )
Stonefly nymphs indicate high levels of water pollution.
3 )
Crusty lichens indicate moderate levels of air pollution.
Bloodworms indicate moderate levels of water pollution.
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!