Which of the following is a potential safety hazard?

Umm... I can't find the choices... So, those are the choices I made up that are correct to your question.

Spills covering grounds or falling hazards, such as blocked paths or cords going over the ground.Working from heights, including ladders, scaffolds, roofs, or an elevated workspace.Unguarded device and moving machine pieces; guards dismissed or moving pieces that a worker can unintentionally touch.

Asolar eclipse occurs when the moon gets between earth and the sun, and the moon casts a shadow over earth. a solar eclipse can only take place at the phase of new moon, when the moon passes directly between the sun and earth and its shadows fall upon earth's surface.