B. because the rock is formed and it goes younger as it grows the rock is still old on the inner layers but it adds new layers as it goes
Answer:
If it's in the table, it's an element! Atoms can join together - they form bonds together - to make MOLECULES. For example, two atoms of hydrogen hook together to form a molecule of hydrogen, H2 for short.
It would have been a little helpful if you added a picture but I hope this is helpful.Thank you!
Explanation:
1. courtship rituals 2. attract a mate 3. internal fertalisation occurs inside the feamales body whereas external fertalisation occurs outside the feamales body 4. <span>Gametes may get washed away 5. the devoloping zygote is protected</span>
<span>They can rais the number of crops produced in an amount of time, they can also reduce the need for harmful pesticides. However, they may cause more allergies in humans, producing a health risk.</span>