Answer:
Ion i think
Explanation:
I think ion's contain more negative energy from electrons and since it's -18 and 9+ it would be -9 if u add them up
The answer is B because convection is the transfer of heat without two objects touching.
Answer: 1800 centimeters is the largest measurement
Explanation:
1800 cm = 0.018 km
2.1 m = 0.0021 km
0.0017 km is the smallest
Answer: false, for example, if a frog eats flies, and the flies are land animals, if they go extinct the frogs could die off, meaning any fish or water dwellers that eat the frogs can starve and cause a large chain reaction.
Hope this helps ^^
They show how all creatures have adapted such as giant dinosaurs are now tiny lizards =D<span />