Answer:
Reduce, Reuse, Recycle and Recover are the four R’s.
REDUCE: This means to use the environmental resources in a sustainable way and prevent waste.
REUSE: This means we can use the same thing over again.
RECYCLE: This means things are processed and can get turned into some other product that they can be used again.
RECOVER: This means a safe and eco-friendly alternative should be used in place of a thing.
When yeast rises, it creates air bubbles
Replication of the nucleus.
Answer:
Scientists have been concerned that human activities could cause more plants and animals to become extinct than any point in the past. Along with human-made changes in climate (see above), some of these extinctions could be caused by overhunting, overfishing, invasive species, or habitat loss