_____ is the existence of a wide variety of plant and animal species living in their natural environment.
举一反三
- A full understanding of mathematics is sufficient to explain a wide variety of natural ____________.
- The more trees we plant, _________________. A: the better is the environment. B: the better the environment is. C: the environment is better. D: The environment better is.
- With the plentiful and variety of biology species, Mount Huangshan has become a World Natural and Cultural Heritage site.
- _________ is the process by which living species become gradually modified and adapted to their environment in more and more sophisticated ways.
- The environment is the natural world of land, sea, air, plants, and _________. It is the sum total of all surroundings of a living organism, including natural forces and other living things, which provide conditions for development and growth.