I'm almost positive it's B (<span>B. It must be compacted and/or cemented</span>, but it's been along time since this subject..... Hope this helped.
Answer:
C. Producers
Explanation:
Producers (plants) can turn the sun's energy into usable energy by photosynthesis. They are at the bottom of the food chain; all of our energy comes from them. :)
<span>Well, deep ocean trenches form on a specific type of plate boundary called a subduction zone, and these zones occur when an ocean plate collides with another ocean plate. Hope I helped.</span>
We should stop polluting the rivers and throwing trash all over the place, and cut down less trees, since we are harming the environment for the animals and plants.
Remember that organisms within a particular environment all adapt in a simultaneous basis depending on the type of environment presented within them. This is part of Charles Darwin's theory of evolution when he observed animals in the Galapagos island.
This survival instinct of the frog can be of disadvantage to it because other animals might be able to recognize their calls due to familiarity of this naturally occurring trait that they do. The frogs can now be more prone to predator attacks within its environment.
