Describe the time of day that an early explorer might have planned to enter a harbor and when he might have planned to leave for his trip home. Explain the reasoning.

I think he would want to arrive during high tide and leave during low tide.

Explanation:

your best option is 5,000 kg

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.