What happens to the composition of an atom to cause it to become positively or negatively charged? keep it simple

What should you adjust to make your hard hat fit properly

An ancient marble statue is moved from a rural location to a highly polluted city explain how the move might affect the statue and why you think so

Tortoise shells and snail shells are similar in function: they protect the organism from predators. based on a comparison of the organisms in the images, what can you conclude? 1. tortoises and snails have homologous organs, and they’re evolutionarily related. 2. tortoises and snails have homologous organs, and they belong to same species. 3. tortoises and snails have analogous organs, and they belong to the same species. 4. tortoises and snails have analogous organs, and they don’t belong to the same species. 5. tortoises and snails have analogous organs, and they aren’t evolutionarily related.