The correct answer is D. Abduction
Explanation:
In medicine, the movement of limbs or bones is classified into different types including abduction, adduction, extension, and circumduction. In this way, adduction occurs when the bone or limb moves towards the middle line of the body or center of it while abduction occurs if the movement makes the bone or limb be away from the center of the body. On the other hand, extension occurs when a movement makes the angle of body parts wider and circumduction occurs when the movement is circular. Considering this, the type of movement in which a bone moves away from the midline of the body is the abduction.
Answer:
Acids
Explanation:
Acids are ionic compounds that produce positive hydrogen ions when dissolved in water. Acids taste sour. They conduct electricity when dissolved in water. They also react with metals to produce hydrogen gas.
The four polysaccharides are glycogen, starch, cellulose, and chitlin. You consume them. They are sometimes artificially made or produced by your body.
Answer:
The correct answer will be- Crop rotation
Explanation:
When the growth of a type of crop which uses soil nutrients in abundance and then growing another crop in the same filed led to the decrease in the production of the next crop.
Thus farmers adapted to avoid such farming practices and developed a new practice which allowed the land to become fertile again so that the growth of next crop will not be affected.
The practice involved the planting of a crop on a piece of land then leaving the soil ploughed and unsown for a longer period of time and growing corp on another piece of land allowing the time to restore the nutrient content. This practice is known as "crop rotation".
Thus, crop rotation is the correct answer.
