GK Test On Science: Quiz!

Explanation
The correct answer is Solid, Liquid, Gas. These three options represent the three main states of matter. Solids have a definite shape and volume, liquids have a definite volume but no definite shape, and gases have neither a definite shape nor volume. Water is a specific example of a liquid, while wood is a solid. Therefore, the answer is Solid, Liquid, Gas.

Explanation
Black soil is suitable for growing cotton because it is rich in organic matter and nutrients. It has good water-holding capacity and excellent drainage, which are essential for cotton cultivation. Black soil also has a high clay content, which helps retain moisture and provides a favorable environment for root development. Additionally, black soil has good fertility and a loose structure, making it easy for cotton plants to establish strong root systems and absorb nutrients efficiently.

Explanation
Jute fiber is obtained from the stem of the jute plant. The stem of the jute plant contains long, strong, and flexible fibers that are commonly used to make various products like bags, ropes, and textiles. The stem is processed to extract the fibers, which are then spun into yarns and used in the production of jute-based products.

Explanation
Rice is the main food for Asia because it is a staple crop that is widely consumed and cultivated in many Asian countries. It is a versatile grain that can be cooked in various ways and is a significant source of carbohydrates, providing energy for the population. Rice is also an essential part of Asian cuisine and cultural traditions, with many traditional dishes and recipes centered around this grain. Its high productivity and adaptability to different climates make it a reliable and abundant food source for the region.

Explanation
Brown rice is healthier than white rice because it undergoes less processing and retains more of its natural nutrients. Unlike white rice, which has had the bran and germ removed, brown rice still contains these nutrient-rich components. The bran and germ contain fiber, vitamins, minerals, and antioxidants that are beneficial for overall health. Additionally, brown rice has a lower glycemic index, meaning it causes a slower rise in blood sugar levels compared to white rice. This makes it a better option for managing blood sugar levels and reducing the risk of diabetes.

Explanation
Maize is known as corn.

Explanation
Yellow and colored corn contain high levels of antioxidants, particularly carotenoids such as lutein and zeaxanthin. These antioxidants have been shown to have protective effects on eye health. Lutein and zeaxanthin accumulate in the retina, where they help to filter harmful blue light and reduce the risk of age-related macular degeneration and cataracts. Therefore, consuming yellow and colored corn can promote eye health by providing these beneficial antioxidants.

Explanation
Wheat is considered the most important crop in the world due to its widespread cultivation and high nutritional value. It is a staple food for a large portion of the global population and is used as a primary ingredient in various food products. Wheat is also a versatile crop that can be grown in diverse climatic conditions, making it a reliable source of sustenance in many regions. Its significance in the agricultural industry and its contribution to global food security make wheat the correct answer.

Explanation
Apple is a solid because it has a definite shape and volume. It is not easily deformable and maintains its form under normal conditions. Kerosene and water, on the other hand, are both liquids as they do not have a definite shape and take the shape of their container.

Explanation
Woolen clothes are manufactured from the hair or fur of animals, such as sheep, goats, or alpacas. These animals have a natural insulation property in their hair or fur, which helps to keep them warm in cold weather. This hair or fur is sheared or collected from the animals and then processed to create woolen yarn, which is further used to make clothes like sweaters, scarves, and blankets. Flowers and plants do not produce the type of hair or fur required to manufacture woolen clothes.