Answer:
D.They leave to find work.
Explanation:
It allows the grass and plants time to replace themselves when the animals migrate.
<span>B) secondary
</span>In 2006, an underwater volcano created a new island near the Tonga Islands. Since then, waves and other forces of weathering have created beaches on the<span>island. These beaches are considered _____ landforms.
</span>
NOT:
primary
tertiary
