Negative ion <span>occurs when an atom gains an electron (negative charge) it will have more electrons than protons.</span>
Answer:
A. to conserve soil nutrients
Explanation:
Crop rotation helps to maintain soil structure and nutrient levels. If you don't rotate crops, the soil in that field will inevitably begin to lose the nutrients plants need to grow.
Answer:
D. Tongue rolling
Explanation:
Not many people can do this
Biological diversity is the variety of species in a given area. If a new species is added there are more species and therefor greater biological diversity and if one goes extinct there are less species and therefore less biological diversity.
