Why is this the answer?

The answer is trees because this beautiful riddle gives us wonderful clues about the amazing and powerful role that trees play in the world. Trees are much more than just plants with trunks and branches; they are essential for life on Earth. Let us look at the first line of the riddle: "Creatures of power, creatures of grade, creatures of beauty, creatures of strength." Have you ever stood next to a giant tree? They are incredibly strong, with deep roots and a thick trunk that can live for hundreds of years. This is where they get their great power and strength. Their tall, green crowns reaching up to the sky make them look majestic and beautiful. Next, the riddle says, "As for their lives, they set everything's pace. For all things must come to live." This means that trees are a very important foundation for all other living things. They are busy all day long, taking in sunlight and water to make food for themselves. But a huge, helpful thing they do for us is give off the oxygen we breathe. They also provide shelter and food for animals like birds, squirrels, and insects. They create a healthy environment that lets everything else live and grow, which means they truly "set the pace" for life around them. The clue about the "emerald embrace" is also perfect. The word "emerald" is a special way to describe a beautiful, rich green color, which is exactly the color of a tree's many leaves and branches. When you stand in the shade under a big tree, it is like being wrapped in a huge, cool, green hug. This is the tree's powerful "embrace," protecting us from the sun. Finally, the cleverest clue is that they help us "Either in their life or in their death." When trees are alive, they help everything live. When a tree dies or is cut down, its wood is still very important. We use wood to build houses, make furniture, and even to make paper for our books. So, whether a tree is living or has passed away, it continues to support us all. That is why the answer is trees, the magnificent and helpful giants of the forest.