C is your answer to your question
Answer:
The radioactive isotope content of a rock can be used to identify the rocks age.
Answer:
Asteroids- Asteroids are rocky objects primarily found in the asteroid belt. These objects are sometimes called minor planets or planetoids.
Meteors- They come from the asteroid belt, Some are fragments from bodies such as Mars or our moon, that have been thrown into space by an impact.
Comets- Comets orbit the sun. Occasionally a comet streaks through the inner solar system; some do so regularly, some only once every few centuries.
Explanation:
Answer:
Don't litter on the beach or in the ocean. Leaving behind things like fishing nets or general garbage on a beach can harm coral reefs, to protect it don't throw trash in the ocean.
Another way to protect coral reef is
By not fishing or using a boat near a coral reef. Contact with things like anchors and fishing nets is a key way that coral reefs die or suffer damage.
Hope this was helpful!
