Plastics release chemicals and fumes when burned which can harm the enviroment around them. A good method for their disposal would be recycling them so they can later be used as something else.
Mg, Ca, Sr, Ba, Ra and other elements in the same vertical line
Answer:
B
Explanation: Density by definition is the amount of matter per given volume.
Answer:Convection currents drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle. In places where convection currents rise up towards the crust's surface, tectonic plates move away from each other in a process known as seafloor spreading (Fig. 7.21).
Explanation:
4- N
8- H
2-S
Or in 4 nitrogens, 8 hydrogens, and 2 silicons
