CBSE Class 4 EVS NCERT Solutions: Chapter 7 - From The Window

On the first day of her train journey, Omana observed that the fields she saw were dry and appeared brown. However, on the second day, the landscape had changed significantly. She noticed lush green fields, the soil was red, and the hills were covered with dense trees, indicating a different geographical region or perhaps a change in weather and vegetation.

At the level-crossing, Omana saw various vehicles. Among them, buses and trucks typically run on diesel. Some cars also run on diesel. Vehicles like scooters, motorcycles, and many cars are powered by petrol.

The excessive smoke and noise at the level crossing occurred because many people did not switch off the engines of their vehicles while waiting for the train to pass. Keeping the engines running continuously leads to increased fuel consumption, air pollution (smoke), and noise pollution.

Yes, I have seen similar scenes. For example, when travelling from Delhi to Nainital, the areas alongside the highway are very green and pleasant. The land is mostly plain. Additionally, crossing major rivers like the Yamuna or the Ganga presents vast expanses of water that seem to stretch for miles, creating a beautiful and expansive view similar to what one might observe from a train window.

Crossing railway tracks when the barrier is closed is extremely dangerous and should never be done. It poses a severe risk to life, as trains travel at high speeds and may not be able to stop in time. Safety should always be the top priority, and people must wait for the crossing to open.

Yes, I have seen many bridges. For instance, while travelling by train to Delhi, I have crossed several bridges over rivers and roads. Bridges are a common sight in many parts of our country, especially where there are rivers, valleys, or busy roads.

Yes, I have crossed numerous bridges. One notable example is the bridge over the River Ganges in Allahabad (now Prayagraj), which is a very long and significant bridge that I have crossed multiple times during train journeys.

The bridge mentioned in the context of the journey was built over the River Ganges. Bridges are constructed to span across rivers, valleys, or other geographical barriers.

Looking down from the bridge, I could see the flowing water of the river below. There were also some boats navigating the water, and sometimes, one might spot fishermen at work or people using the river for various purposes.

Bridges are constructed to provide a safe and convenient pathway for people, vehicles, and trains to cross over obstacles such as rivers, lakes, valleys, or busy roads. They connect different areas, making travel easier and faster.

Yes, I have experienced travelling through a tunnel. Initially, it can feel a bit strange or even slightly unnerving due to the sudden darkness and enclosed space. However, knowing that tunnels are safely engineered structures built for passage, the feeling of nervousness usually subsides, replaced by an awareness of the engineering involved.

The large number of bridges and tunnels on the route from Goa to Kerala is due to the region's geography. This route likely passes through areas with numerous rivers, backwaters, and coastal regions, requiring many bridges to cross them. Additionally, the Western Ghats mountain range runs along this part of India, necessitating tunnels to pass through the hills and mountains.

When Omana's train crossed the bridge, she saw the river flowing underneath. Along with the water, there were likely boats being used by fishermen. She might have also observed people fishing or perhaps the river banks with vegetation. Drawing this scene would involve depicting the bridge structure above, the river water below, and elements like boats and fishermen.

If there were no tunnels and bridges, Omana's train would not have been able to cross the mountains and rivers. Trains require a continuous, level track to run on. Without bridges, crossing rivers would be impossible, and without tunnels, navigating through mountains would be impossible. The journey would be completely halted by these natural barriers.

At home, people speak a variety of languages depending on their region and family background. For example, some families might speak Hindi and English, while others might speak regional languages like Tamil, Telugu, Marathi, Bengali, or others, often along with Hindi or English.

Omana started her journey from Gujarat. As her train travelled towards Kerala, it passed through several other states. Based on the typical train routes, the states crossed would likely include Maharashtra and Goa, before finally entering Kerala. So, the sequence of states could be Gujarat -> Maharashtra -> Goa -> Karnataka -> Kerala.

Here are the states where the mentioned languages are primarily spoken:

• Malayalam is spoken in Kerala.
• Konkani is spoken in Goa, and also in parts of Maharashtra, Karnataka, and Gujarat.
• Marathi is spoken in Maharashtra.
• Gujarati is spoken in Gujarat.