Think about this logically.
Excessive Irrigation would be flooding the land. This would wash away soil and nutrients for the plants.
Crop Rotation is rotating crops to<span> preserve the soil. </span>
Soil Exhaustion is when you exhaust the soil of its nutrients, making it basically barren until the nutrients replenish.
Leaching also takes away nutrients from the soil. So by not doing things other than mentioned above will make his soil productive
Answer:
A
Explanation:
Let's say x represents adult tickets, and y represents child tickets.
We know that 2 adult tickets, x, and 2 child tickets, y, added together total $26. This can be written as:
2x+2y=26
We also know that 2 adult tickets, x, and 3 child tickets, y, added together total $31. This can be written as:
2x+3y=31
So, our system is:
2x+2y=26
2x+3y=31
Therefore, choice A is correct.
Answer:
Positive feedback
Explanation:
Positive feedback climate is usually defined as the process where there occur changes in the region where the lighter colored surfaces such as the region of glaciers, ice caps are replaced by the dark-colored surfaces, and this results in the decreasing of the albedo (light-reflecting property) and also increase in earth's surface temperature. This type of feedback is also known as the ice-albedo feedback.
High rate of heating results in the decreasing amount of glaciers and ice-caps, thereby leading to the global warming effect.
Thus, the above-given condition is an example of positive feedback.
