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
In a nuclear power plant, heat released from nuclear fission reactions is used to change water into steam. The conversion of water into steam and using steam to be able to turn a propulsion shaft includes the process of producing and the expanding phase of the steam cycle. In order to understand the steam cycle, it is very important to also properly comprehend the characteristics and properties of both water and steam especially during the most crucial phase of conversion.
Answer:
The length of an eccentric motion that a muscle can perform is b. Flexibility
Explanation:
Eccentric contraction means almost the same as muscle strengthening. This type of exercises are used in sports recovery or different types of rehabilitation. These kind of flexibilty (or stretching) exercises enhance the extensibility of the muscle. Eccentric contractions use less metabolic energy and the idea is to challenge the muscles.