The major muscles involved while performing a wall sit or squat are the quadriceps muscles.
Explanation:
Exercises like wall sit or squat are an isometric exercises which works the entire group of lower body muscles.
Isometric exercises are endurance building exercises which improves the muscle endurance by holding it in a position for longer time. These exercises does not involve any big bodily movements but works by tensing the muscles.
Both these exercises primarily involve the front thigh muscles or the quadriceps. Squats and wall sits help to tone and shape the quads and other muscles involved. The angle of the body should be maintained at right angle to reduce the pressure on these muscles.
Other muscles which are involved in these exercises are the hamstrings, core, lower back muscles etc.
Its called <span>Aortic Arches. Once the earthworm ingests their food it goes straight through their </span>digestive<span> tract which goes down the </span>esophagus<span> then through the crop and gizzard.</span>
Complete question:
A student is working on a lab where they are trying to identify an unknown substance. The student decides to smell the solution by taking a big breath over the test tube. They immediately start to cough and their lungs are burning.
Answer and Explanation:
Many chemicals might be recognized by their smell. Some of them might be inoffensive, some others might cause slight damage and some others might be very harmful to the person that inhales them.
In the exposed example, the solution probably damaged the respiratory tract, causing inflammation and irritation.
There are some issues to take into account to avoid an accident by inhaling a chemical:
<u>Precaution</u>:
- Study the security rules of the laboratory
- Always read the label of the substance
- Ask the teacher or the person in charge, about the correct procedure
- Proceed in the correct way, by driving the smelly vapors with your hand toward your nose. Never breathe directly over the test tube.
In case of accidents by inhaling you should:
<u>Response:</u>
- Take the affected person out of the laboratory
- Look for an airy place where the affected person might breath
- Call an emergency service
- Explain exactly what the affected person did and the chemicals that the person inhaled.
Answer:
Answer no 1
Location that experience seasonal sea water freezing have increased salinity in the surrounding seawater during that time.
When water freezes, it form sea ice which expel out salt into surrounding water and increase the salinity of surrounding seawater.
Answer no 2
Location that experience seasonal ice melting have decreased salinity in the surrounding sea water during that time.
Answer no 3
Sample A which has high salinity content and taken from Atlantic ocean represent just east of the Bahamas
Answer no 4
Sample B which has moderate to low salinity is represent off the West coast of Africa near the equator.
Answer no 5
Sample C which has high salinity content is taken from Red Sea.
Answer no 6
Sample D which moderate to low salinity content, is taken from Baltic Sea.
Answer:
C
Explanation:
all of them have negative effects on the enviroment as a whole but C gives no reason why it would be a consequence
