I dont know what the options are. just send the options and i can answer
Group 7A, the Halogens contain metalloids such as Astatine.
D: using a color reference chart :)
<span>A fossil leaf that is made only of carbon preserved between two rock layers is called carbon film fossil.
</span>Characteristic of the carbon film fossils is that they are primarily composed of carbon. The fossil leaf has usually lost <span>internal components (cell walls and internal cell structures ).</span>
