Well, it depends but adults can weigh up to 420,000 pounds
I think this is the answer key.. tell if you need help read it :)
If you are implying one these choices not needed for survival it would be parents only when you can survive on your own (I'm not that sure but I hope this helped the slightest but)
Answer:
Here's what i think.
Explanation:
Tides can be extremely dangerous, in some places, high tide will flood caves which people otherwise wouldn't notice as flood-able. Knowing the tides can save lives of Spelunkers (people who explore caves). Another example is sailing. The tides can be important because tide can determine if your boat will be smashed against rocks, or if it is safe to dock!
