The force of the wind over an area increases as the square of the wind velocity. o true o false

True

Explanation:

The wind will exert a force on a body no matter the size of the object

The force on an object due to wind is given by

The unit is Newton

Where,

= Density of air

A = Surface area of object

v = Velocity of air

Hence, it is true that the force of the wind over an area increases as the square of the wind velocity.

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.