Aplicația este accesibilă de pe ecrane late

When eggs break and baby birds come out, the eggs ...
When birds make eggs, they ... them.
... means complete or whole.
To ... something is to try to save it from harm.
When things continue to live under difficult conditions, they ...
There is ... when the air or water is dirty.
When things are becoming smaller in number or size, they are ...
When something causes a change or a result, it ... it.