Answer:
Tides are the periodic rise and fall of surface water caused by the gravitational force of the moon and the sun and by the rotation of the earth. The movements of the solar system that influence the tides are predictable; therefore changes in tide height and time are predictable.
Four factors that helped the realization of the Industrial Revolution were assets, new innovation, monetary conditions, political and Social Conditions. With huge supplies of assets, for example, coal Britain could control more steam motors to make more supplies. New innovation helped give more employment. Monetary conditions helped by populace explosion that prompt increment popular and furthermore a considerable measure of cash-flow to put resources into. Political conditions; exceptionally stable government, building the solid naval force to secure merchandise and exchange, development of abroad realm. Social conditions that empower diligent work, sparing a considerable measure of cash, concentrate more on common belonging.
They invented the roman army and the canon in 1683
NATO was created to counter Russia's (formally USSR) military power and it has expanded in recent years.
