An MCQ Test About Our Mother Nature

Solar energy is the correct answer because it refers to the use of the sun to produce power. Solar energy is a renewable and sustainable source of power that is harnessed through the use of solar panels or solar thermal systems. This energy is obtained from the sunlight and converted into electricity or used for heating purposes.

Biodegradable substances are those that can be broken down naturally by microorganisms into simpler, harmless substances. These substances dissolve into the ground after being thrown away, which means they do not accumulate in the environment and cause pollution. They are considered environmentally friendly because they do not harm ecosystems or human health.

Elephants are able to kill and injure other animals by making use of their tusks. Tusks are long, sharp, and pointed teeth that protrude from the elephant's mouth. These tusks can be used as weapons to stab and pierce other animals, causing serious harm or even death. Elephants use their tusks for self-defense, to establish dominance, and in some cases, for hunting. Due to their size and strength, elephants have the ability to cause significant damage with their tusks, making them a formidable threat to other animals.

The correct answer is "playful" because it is the adjective form that accurately describes animals that enjoy playing.

Deforestation refers to the gradual decline in the amount of land occupied by forests. It is the process of clearing, destroying, or removing trees from an area, leading to the loss of forest cover. This term accurately describes the reduction in forested areas over time due to human activities such as logging, agriculture expansion, and urbanization.

The word "intelligent" is the most suitable to describe someone who is a deep and systematic thinker. This is because intelligence encompasses the ability to think critically, analyze information, and solve problems in a systematic manner. Being intelligent implies having a high level of cognitive abilities and being able to grasp complex concepts and ideas. Therefore, someone who is a deep and systematic thinker can be described as intelligent.

The area of land that animals occupy and depend on as a source of food is called a habitat. A habitat provides the necessary resources and conditions for an animal to survive, including food, water, shelter, and suitable living conditions. Animals have specific habitat requirements based on their species and adaptations, and the availability and quality of their habitat directly impact their survival and population dynamics. Therefore, the correct answer is habitat.

Ships used to transport oil are called oil tankers because they are specifically designed and built to carry large quantities of oil safely and efficiently. These tankers have special storage compartments called tanks that can hold the oil, preventing any leakage or spillage during transportation. The term "oil ships" or "oil boats" may be too general and can refer to any type of ship or boat used in the oil industry, whereas "oil tanks" refers to the storage containers rather than the vessels themselves.

The layer of air surrounding the earth is called the atmosphere. It is essential for sustaining life on earth as it provides oxygen for breathing. The atmosphere is composed of different layers, including the stratosphere and the ozone layer. However, the outermost layer is referred to as the atmosphere as a whole.

A married man who refrains from having affairs with other women is considered faithful because he remains committed and loyal to his spouse. This indicates that he values and respects the vows and commitment made in the marriage, and chooses not to engage in infidelity. Being faithful in a relationship is an important aspect of maintaining trust, honesty, and emotional connection with one's partner.