Answer: D
Explanation: carbon is coming out of the buildings
Answer:
Explanation:
Fish have scales for many reasons. Firstly, to protect the skin of the fish from attacks from predators, parasites and other injuries. Secondly, scales overlap each other in the same way that an armour would protect a person. Hence, providing a layer of protection for the fish.
Answer:
i dont know but
Explanation:
Submerged native plants became shaded and often die. Water hyacinth is native to South America, the only continent where natural predators such as weevils and moths keep it at bay. The plants can reproduce using a process called fragmentation
Darwin explained that evolution occur due to natural selection.
The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium