every question. answered.

We breathe with the help of our ________.

We breathe with the help of our lungs. Lungs are important body organs inside our chest that help us take in air and breathe out used air.When we breathe in, air enters our body through the nose and reaches the lungs. Breathing gives our body the oxygen it needs to work, play, run, and stay active.

A tree is fixed to the soil with its _____.

A tree is fixed to the soil with its roots. Roots grow under the ground and hold the plant or tree firmly in place.Roots also absorb water and nutrients from the soil. This helps the tree grow strong, make leaves, and stay alive. Children can understand this by looking at small plants where roots are visible.

What is a male cow called?

A male cow is called an ox. An ox is a strong animal and is often used in farms for pulling carts or helping with agricultural work in some places.This answer helps children learn the difference between male and female animals. The female is commonly called a cow, while the male can be called an ox or bull depending on its use and context.

Which of these has feathers?

A hen has feathers. Feathers cover the body of birds and help keep them warm. In many birds, feathers also help in flying, though hens usually do not fly high like many other birds.Children can identify birds by looking for feathers, beaks, wings, and two legs. A hen is a common example that helps students understand the basic features of birds.

All living things need food, air, and ____ to survive.

All living things need water to survive. People, animals, and plants all need water because it helps them live, grow, and stay healthy.For example, we drink water every day, animals drink water from ponds or bowls, and plants absorb water from the soil through their roots. Without water, living things cannot stay alive for long.

Which of these animals lays eggs?

A chicken lays eggs. Chickens are birds, and many birds reproduce by laying eggs. After some time, a baby chick can come out of the egg if it is kept warm and cared for properly.Children can easily understand this by observing eggs used at home or seeing pictures of hens sitting on eggs. This makes the concept of egg-laying animals simple and practical for Grade 1 students.

What is hybridization? What are its types, with an example?

Hybridization is the mixing of atomic orbitals in an atom to form new, equivalent orbitals that are better suited for forming chemical bonds. It explains the shape of molecules.Types:TypeOrbitals MixedShapeExample</

Lactobacillus benefits

Makes curd/yoghurt/cheese, produces lactic acid, maintains gut microbiome, boosts immunity, supports vaginal health, reduces antibiotic-associated diarrhoea. Classified as GRAS (Generally Recognised As Safe).

Are all bacteria harmful?

False most are neutral or beneficial

Is it a type of bacteria?

True Gram-positive, rod-shaped, Firmicutes phylum

Is Lactobacillus harmful?

False it is beneficial (probiotic)

10 Examples of Shrubs

Rose, Hibiscus (Gudhal), Jasmine, Tulsi (Holy Basil), Henna (Mehndi), Bougainvillea, Lantana, Croton, Azalea, OleanderA shrub is identified by: woody stem + multiple stems from base + height 0.5–6 m + perennial lifespanShrub-tree examples: Pomegranate, Oleander, Curry Leaf Plant, Bottle Brush (Callistemon) plants that can grow as large shrubs or small trees.

How bleaching powder is made

Ca(OH)₂ + Cl₂ → CaOCl₂ + H₂O (Slaked lime + Chlorine gas at ~40°C → Bleaching powder) Uses of bleaching powder:Bleaching agent for cotton, linen, wood pulp (textile & paper industries)Disinfectant for drinking water, swimming pools, sewage<li data-list-item-id="ec6efc5727b37ba623b7bbb6e9901

Is milk a type of colloid?

Milk is a liquid-state colloid specifically an oil-in-water emulsion:Dispersed phase: Fat globules (liquid)Dispersion medium: Aqueous solution (water + lactose + proteins)Stabiliser: Casein protein (emulsifier)<li data-list-item-id=

Is milk matter?

Yes it has mass and occupies space. It is a liquid-state heterogeneous mixture (colloid), not a state of matter itself.

List the seven basic practices of crop production in their correct sequence.

The seven basic practices of crop production in their correct sequence are: 1. Preparation of Soil2. Sowing3. Adding Manure and Fertilizers4. Irrigation5. Protection from Weeds6. Harvesting7. Storage.

What is the main difference between a 'godown' and a 'silo' for grain storage?

A 'godown' typically refers to a warehouse or a large shed used for storing grains in bags or sacks. They are usually rectangular structures and require manual labor for stacking and unstacking bags. 'Silos', on the other hand, are large, tall, cylindrical structures designed for bulk storage of grains. Grains are stored loose, not in bags, and are typically loaded and unloaded mechanically, making them more efficient for very large qu

Explain how a sprinkler system works and for what type of terrain it is most suitable.

A sprinkler system involves perpendicular pipes having rotating nozzles on top. These are joined to the main pipeline at regular intervals. When water is allowed to flow through the main pipe under pressure with the help of a pump, it escapes from the rotating nozzles and gets sprinkled on the crop as if it is raining. This system is most suitable for uneven land where sufficient water is not available, and for sandy soils.

What is the primary purpose of preparing the soil before sowing seeds?A. To add nutrients to the soil.B. To loosen the soil, allowing for better root penetration.C. To remove all weeds from the field.D. To compact the soil for better water retention.

Ans. BLoosening the soil creates spaces for air and water, essential for healthy root growth. It also helps in mixing nutrients and improving drainage.