Worldwide, coal is, because it's cheap, plentiful, easy to obtain, easy to transport, easy to store, easy to handle, carries lots of chemical energy, burns easily, and neither it nor its waste products are immediately and obviously toxic or deadly.
Answer:
b
Explanation: because it wont effect the animals home
Answer:
the soap sinks because it is more dense than the duck.
water management, carbon dioxide, sunlight, or water