Answer: 1: Carbon Dioxide 2: Water 3: Glucose 4: Oxygen
Explanation:
Answer:
they need it to function properly
<span>As stated in the given, chlorine ion is formed when the neutral atom which only has seven electrons in its valence shell, accepts additional electron. The nature therefore of a chlorine ion apart from being negatively charged is that it will take electron from the bonds or share electron when covalent bonding is done. </span>
<span>A sand bar that completely crosses a bay, sealing it off from the open ocean, is called a baymouth bar.
As a result of longshore drift (which creates beaches as well), this depositional feature that doesn't allow access to a bay is created. This refusal of access is complete, not partial as is the case with a barrier island separating a lagoon. A baymouth bar consists of a lot of sand and gravel that accumulated over time.
</span>
Sorry for the other guy. He was rude. Here's the answer:
Animals excrete CO2 by cellular respiration. Since any living things besides plants can't break down CO2, it just gets put back into the environment. I hope I helped you :)