answer:Proper storage, improved transportation, better harvesting techniques, and use of appropriate technologies can all help reduce post-harvest loss in crops.

answer:Irish soldiers were not involved in the Easter Rising of 1916, as it was a rebellion led by Irish civilians and members of paramilitary groups.

answer:Radio propagation changes depending on the time of day due to atmospheric changes and ionospheric variability caused by variations in the sun's energy output. During the day, radio waves travel further in the lower atmosphere (troposphere) which absorbs some of their energy, while at night they can travel further in the ionosphere due to changes in its properties. This causes different frequencies of radio waves to be absorbed or reflected, affecting their propagation and coverage.

answer:Crustaceans face challenges such as predation, competition for resources, changes in environmental conditions (temperature, salinity, water flow), and pollution. They must also find suitable shelter and habitats to protect themselves from predators and survive in their constantly changing ecosystems.