Hi there! Let me tell you about meadows. A meadow is like a big, open field where lots of grass grows. You can also find pretty wildflowers there. Wildflowers are colorful flowers that grow all by themselves, not in gardens. Meadows are full of grasses and these lovely wildflowers, making them a happy place for animals like butterflies, bees, and birds to live and play!
So, when we say meadows are dominated by grasses and wildflowers, it means these plants are the most common and they cover most of the meadow. It's like how your playground is mostly filled with sand and grass, and maybe some flowers too!