Yarn in to sweater as COLOR is to flower
They ensure they leave the system and they also ensure that people get the nutrients they need.
Lichens are widely used as environmental indicators or bio-indicators. If air is very badly polluted with sulphur dioxide there may be no lichens present, just green algae may be found. Therefore the answer is the air quality is good because of no lichens present
Answer: to help the economy
Explanation: none
The best synonym for vales in the lines "By the stream & o'er the mead..Making all the vales rejoice!" from The Lamb will be valleys. The correct answer is C.