The water that falls from the sky today as rain may have once been part of the ocean. how can this be?

The water that falls from the sky today as rain may have once been part of the ocean because of the cycle of water.

Explanation:

The water cycles between the ocean, the land, and the atmosphere. In a simple way to explain:

1. Water from the ocean, streams, rivers, and lakes evaporates and go to the atmosphere.

2. In the atmosphere, the water cools and condense in clouds. 

3. Then, water from the clouds goes down to the land through snow or rain. 

4. Then, water from land is collected in ocean, streams, rivers, and lakes; and the cycle begins again. 

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.