The changes. You are measuring change. It could be Temperature, height, or any other form.
Answer:
The answer is C.Production of plants and crops that are resistant of diseases.
Fertilizer is a chemical or has chemicals in it. When the land being fertilized is near water, the fertilizer is washed into the water harming the water and polluting it. Have regulations such as a distance from the water that land must lay, or the amount of fertilizer you can use can help keep the water clean and unpolluted.
Prophase is the first step in mitosis and many changes occur. Chromatin fibers become coiled into chromosomes, with each chromosome having 2 chromatids joined at a centromere. The mitosis spindle, composed of microtubules and proteins, form in the cytoplasm.
The correct option is INTRODUCTION OF EXOTIC SPECIES;
Exotic species refers to an introduced specie of an animal which is alien to the ecosystem in which it found itself and which has been transported to that ecosystem either intentionally or by accident. Exotic species normally have varieties of effects on the ecosystem to which they are introduced, sometimes the effect will be good and sometimes the effects could be devastating depending on the particular situation.
Factors which promote diversity include: larger size of the ecosystem, longer growing seasons and climatic stability.<span />