Answer:
Cell,tissue,organ,organ system
Explanation:
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An atom that has gained or lost electrons is called an ion
Answer:
The correct answer is - option D. Soil erosion.
Explanation:
Soil erosion is a normally happening process that has an impact on all landforms. In common agriculture soil erosion alludes to the removing or disintegration of a field's top layer by the normal physical powers of water
Running water is the main source of soil erosion since water is plenty of quantity and has great power. Exercises that eliminate vegetation upset the ground, or permit the ground to dry are exercises that expand disintegration.
Thus, the correct answer is - option D. Soil erosion.
A dichotomous key involves 3 keys