Nitrogen must be converted into nitrates before organisms can use it. If soil lacks nitrogen fixing bacteria, then it has few nitrates for the plants to take in.
The 1883 eruption of Krakatoa (Indonesian: Krakatau ) in the Sunda Strait began on the afternoon of Sunday, 26 August 1883—with origins as early as May of that year—and peaked on the late morning of Monday, 27 August 1883, when over 70% of the island of Krakatoa and its surrounding archipelago were destroyed as it collapsed into a caldera.
The answer is dams they protect against flooding
The answer is; <span>"He should have helped me cheat on a test when I asked him."
In childhood, some children do this kind of things just to take revenge as they did not know about the side effects or what happened after doing such kind of things. His friend or classmate did not helped him in a test so that is why he gave a snack to him to take revenge because he is known to his peanut allergy.</span>