CBSE Class 7 English An Alien Hand NCERT Solutions

Tilloo manages to reach the forbidden passage by cleverly using his father's security card while his father is taking a nap. He also makes sure to avoid being seen by his mother, who is keeping a watchful eye.

Once Tilloo managed to get out of his underground home, he was filled with the hope of seeing the natural wonders of the sky, specifically the sun or the stars.

Tilloo's father strongly advised him against going to the planet's surface because it is extremely dangerous for ordinary people. The atmosphere there is too thin to breathe, and the temperatures are so low that survival is impossible, leading to freezing to death.

Significant environmental changes occurred, forcing humanity to seek refuge underground. The sun, once a source of life, turned hostile. Even a slight alteration in its nature was enough to disrupt the delicate balance of nature. This imbalance led to the extinction of fish, birds, and animals, making the surface uninhabitable.

The Control Room was buzzing with excitement because the large TV screen displayed a mysterious dot against a clear background, which was observed to be moving towards their planet.

The spacecraft was unmanned. This was confirmed when Number One reported to the president that the spacecraft did not contain any living beings; it was equipped only with instruments.

Number One suggested a proactive approach: they should wait for the spacecraft to land and then be prepared to disable it whenever necessary. In contrast, Number Two recommended a passive strategy of non-interference, advising them to observe silently and avoid revealing their presence by rendering the spacecraft ineffective.

It is likely that the mechanical hand was attempting to collect a sample of the planet's soil. This sample would then be taken back for scientific examination to understand the planet's composition.

The 'damage' referred to was that the mechanical hand, which was part of the alien spacecraft and was in the process of collecting a soil sample, ceased to function after Tilloo pressed the red button.

The spacecraft had originated from the planet Earth.

Tilloo and his parents reside on the planet Mars.

Living in an underground home like Tilloo's would present significant difficulties, primarily the lack of freedom and open space. It would feel confining, similar to living in a cell, with limited opportunities for sightseeing or experiencing nature directly. Social interactions might also be restricted. However, potential compensations could include a sense of peace, harmony, safety, and security, especially if the community collaborates well within the shared underground environment.

A major factor that could compel mankind to live underground is severe global warming. This phenomenon could lead to the depletion of the atmosphere and drastic changes in climate patterns, rendering the Earth's surface hostile and destroying life, thus forcing people to seek shelter beneath the ground.

This question encourages students to use their imagination and critical thinking. While the story suggests the possibility of life from Earth visiting Mars, students can speculate about extraterrestrial beings. They might consider differences in physical appearance, communication methods, societal structures, or technological advancements based on their understanding of science and science fiction.