at the end it tells you that humans had an immunity to the micro organisms on earth. and the aliens did not, so they got ill and couldn't operate their tripods, so shields went down and humans got revenge.
The martians in "The War of the Worlds" novel were destroyed by Earth's bacteria and viruses, to which they had no immunity. These pathogens were able to defeat the technologically advanced martians and save humanity from the alien invasion.
Sense the Martians had no form of Immunol health for the diseases found on our planet. They most likely cause is they died of whatever infected them sooner, that could be anything from the common cold and strep-throat; To major things such as Cancer.
(Although it is noted that the Martians had no form of digestive tract, the fact that they ingested human blood is part of the reason I listed cancer as one of the probable causes of death.)
Basically in my opinion they died of whatever disease or virus got to them first.
Their vulnerability to Earthly bacteria. Before commencing the invasion of Earth, they had reckoned without the possibility that they would not be immune to Earthly diseases that humankind can survive, but which would prove to be fatally epidemic to them. They are killed by Earthly germs too quickly for them to realise what is happening, or for them to try to strike a peace deal with humanity for an end to hostilities in return for help in combatting common bacteria and viruses.
If you watched the end of the movie you would have seen that it was bacteria and microbes that killed the aliens.
The martians were killed by diseases, which they had no natural immunity too.
They had succumbed to bacteria and viruses. As Wells put it, βslain by the putrefactive and disease bacteria against which their systems were unprepared.β
In H.G. Wells' "War of the Worlds," the narrator escapes from the Martians by hiding in a partially destroyed house. He stays hidden for several days until the Martians are weakened by Earth's viruses and bacteria, which they have no immunity to. This proves to be their downfall as they are eventually defeated by Earth's microorganisms.
The War of the Worlds is a science fiction novel written by H.G. Wells in 1898. The story is about the adventures of two brothers in London and the countryside around London as Earth is invaded by Martians.
The woman in the novel "War of the Worlds" is named Carrie. She is one of the few characters who help the protagonist, the narrator, during the invasion of Earth by Martians.
In H.G. Wells' book "The War of the Worlds," the Martians land on Earth in cylinders fired from a giant cannon. The exact number of Martians that land on Earth is not explicitly stated, but there are multiple tripods, each operated by a group of Martians.
In H.G. Wells' "War of the Worlds," the Martians are described as emitting a loud, wailing cry. This sound is associated with their war machines and is said to be eerie and unsettling to those who hear it.
Mars is dying and Martians need a new place to live
The birds needed a place to perch because the martians destroyed the buildings. It also showed that the Tripods had no shields on.
In War of the Worlds, the bodies of the Martians were left where they fell after being killed. There was no specific action taken with their bodies since they were perceived as dead and a threat no longer existed.
In H.G. Wells' novel "The War of the Worlds," the tripods are giant machines piloted by the Martians, an advanced alien species that invades Earth. There is no mention of any specific beings inside the tripods; they are autonomous war machines controlled by the Martians remotely.
In "War of the Worlds," the external conflict arises when the Earth is invaded by Martians. The Martians' advanced technology and weaponry pose a dire threat to humanity, leading to a desperate struggle for survival. This external conflict drives the plot of the story as humans attempt to resist and defeat the invading Martians.
The war in H.G. Wells' "The War of the Worlds" begins when Martians invade Earth by landing in Grover's Mill, New Jersey. The invasion marks the start of the conflict between humans and the Martians as they try to conquer Earth.
Earth, but fictional account told from perspective of someone in UK