Test: Life in Tropical and Subtropical Regions - Class 7 MCQ

• In the Amazon rainforest, you mostly find tall broadleaf hardwood trees. These trees are very big and have wide leaves.
• They grow close together and form a thick canopy, like a green umbrella over the forest.
• This canopy stops a lot of sunlight from reaching the ground below, making the forest floor dark and damp.

The Amazon rainforest is mainly covered by tall broadleaf hardwood trees. These trees have wide leaves and are very strong.

• Indigenous groups living in the rainforest primarily engage in activities like hunting and gathering food.
• This means they hunt animals for food and collect fruits, nuts, and other edible plants from the forest.
• It's like going on an adventure to find food, just like how you might play pretend adventures at home or in the park.

Indigenous groups in the rainforest primarily involve themselves in activities like hunting, gathering food, fishing, and farming. Agriculture is an essential part of their traditional lifestyle, where they cultivate crops for food and resources.

The Amazon rainforest is like the Earth's lungs. It helps to clean the air we breathe by taking in the bad air (carbon dioxide) and giving out the good air (oxygen). So, it's like a big air purifier for our planet!

The Amazon rainforest is called the largest carbon sink globally because it absorbs carbon dioxide, which is a gas that can harm the Earth, and releases oxygen, which is what we breathe.

• The Ganga river starts from a place called the Gangotri glacier. It's like the river's birthplace.
• Just how we all have a place where we were born, the Ganga river also begins its journey from the Gangotri glacier in the Himalayas.
• This glacier is like a big icy mountain that slowly melts and gives birth to the river.

The Ganga river starts from the Gangotri glacier in the Himalayas. The Himalayas is a very big mountain range with lots of snow on top. This snow melts and forms a river that starts the Ganga river.

Mangrove forests like the Sundarbans in the delta region are special because they can grow in both fresh and salty water. They are like homes for many animals, like tigers and crocodiles. Mangrove trees have special roots that help them live in the water.

• The people in this area have been clearing forests for farming for many centuries, which means they have been cutting down trees and plants to make space for growing crops.
• This has led to a scarcity of natural vegetation, which is plants and trees that grow naturally in an area without human help.

The main work in the flat lands is agriculture. This means people grow crops there. The most important crop they grow is paddy, also known as rice. Rice needs a lot of water to grow well. So, in these areas, farmers mainly grow rice, which is a type of food many people eat almost every day!

Rohu is a type of fish that is found in the region along with elephants, Bengal tigers, deer, monkeys, one-horned rhinoceroses, and crocodiles. It is a diverse place with many different kinds of animals.

The fertile soil in the Ganga-Brahmaputra region helps the agriculture there by providing nutrients and minerals that plants need to grow big and healthy. This soil is like magic food for the plants, helping farmers grow lots of delicious fruits and vegetables that we all love to eat.

Fertile soil means that the soil is very good for growing plants. In the Ganga-Brahmaputra Plain, the soil is fertile because it is great for agriculture, helping farmers grow lots of crops.

• This chapter talks about how the places where people live impact their lives.
• It explains how the weather, land, and surroundings influence things like what they wear, what they eat, and what jobs they do.
• So, it's showing us how the environment around us can shape the way we live and the things we do.

The chapter will focus on two specific locations situated in tropical and subtropical regions: the Amazon basin and the Ganga-Brahmaputra basin. The Ganga-Brahmaputra basin is an important region that we will learn more about.

The Amazon basin mostly has a hot and humid climate. This means it's usually warm and wet there. So, you can expect it to be sweaty and rainy most of the time. It's like being in a warm, steamy shower all day long!

• Indigenous groups in the rainforest usually build their huts using natural materials found in the forest. These materials can include things like branches, leaves, mud, and vines.
• They carefully select these items to create sturdy and comfortable shelters that blend in with the environment, helping them live harmoniously with nature.

When farmers clear a part of the forest by burning trees and use the ashes to help the soil, it is called shifting agriculture. After some time, when the soil is not as good, they move to a new place to farm again. This helps them grow food and other things they need.

• When people cut down trees in the Amazon rainforest for things like logging, farming, mining, and settlement, it causes damage to the forest's ecosystems.
• This means that the animals, plants, and natural balance of the rainforest are harmed.
• It's important to find ways to protect the rainforest so that animals can have homes and the environment can stay healthy.

The Amazon rainforest is like a big sponge that soaks up carbon dioxide, a gas that can make the Earth too warm. It helps by cleaning the air we breathe and giving us fresh oxygen to keep us healthy.

Tropical evergreen forests, deciduous forests, and coniferous trees like pine, cedar, deodar, and fir can be found in mountainous and foothill areas. Deciduous forests are the ones that shed their leaves annually, making way for new growth in the following seasons.

• In simple words, this means that the way people live, what they wear, what they eat, the work they do, and their traditions are all influenced by where they live.
• For example, people in hot places might wear light clothes and eat foods that keep them cool, while people in cold places might wear warm clothes and eat foods that give them energy for warmth.

In the Amazon basin, the region is actually in northern South America, not southern. So, the statement is False.

An interesting fact is that the Amazon River, which is the largest river in the world, flows through the Amazon basin.

• In simple terms, the Amazon basin doesn't have a lot of people living close together. It actually has fewer people living there. So, the statement is False.

• Did you know? The Amazon rainforest is one of the most biodiverse places on Earth, home to a wide variety of plants and animals!

• In simple words, the Amazon rainforest acts like the Earth's lungs. Just like how we breathe in oxygen and breathe out carbon dioxide, the rainforest does the opposite.
• It takes in carbon dioxide, which is not good for us in large amounts, and gives out oxygen, which we need to breathe and stay alive.
• So, when the rainforest is cut down or harmed, it can make the Earth warmer and less healthy because too much carbon dioxide stays in the air.

It is FALSE that summers are cold and winters are hot in this region. In most places, summers are indeed hot, and winters are cold. This is a general pattern seen in many regions. So, in this case, the statement is False.