If you heard a new hurricane warning announced over the radio, what would it mean? A weak hurricane has been upgraded to a strong hurricane. A weak hurricane has been upgraded to a strong hurricane. A big hurricane is projected to hit land within 36 hours. A big hurricane is projected to hit land within 36 hours. A tropical storm at sea has been upgraded to a hurricane. A tropical storm at sea has been upgraded to a hurricane. A big hurricane is projected to hit land within 12 hours.

A tropical storm at sea has been upgraded to a hurricane.

Explanation:

Hurricane warnings are issued with respect to the conditions that may cause the commencement of a hurricane in a particular area. The warning is issued before the winds hit the tropical storm force. This helps in preparing for all the necessary precautionary steps before the storm force effects. The humans are strictly orders to evacuate the area immediately. The local officials warn the public through many means and the announcement through the radio is one of them.

a) the particles of the chair are strongly held together.

the answer your looking for is c).