Question

Science Test
1. Give one example of linear motion and circular motion.
2. Define rest and motion.
3. Difference between biodegradable waste and non biodegradable waste.
4. Explain segregation of waste.
5. What is landfill and how it is created?
6. What is paper made from? Mention some ways?
7. How can we keep our sorroundings clean?
8. What is the difference between sanitation and sterilization​

Answer 1

Answer:

1.The motion of an body along the straight line is called linear motion. For example, a car running straight towards the destination. The motion in which body moves along the circular path is called circular motion.

2.Rest: If a body does not change its position with respect to its surroundings, the body is said to be at rest. E.g. A table lying in a room is at rest with respect to the walls of the room. Motion: A body is said to be in motion if it changes its position with respect to its surroundings.

Answer 2

1. The motion of an body along the straight line is called linear motion. For example, a car running straight towards the destination. The motion in which body moves along the circular path is called circular motion.
2. Rest - a body is said to be at rest, if it does not change its position with respect to its surrounding with time. Motion - a body is said to be at motion, if it changes its position with time.
3. Biodegradable substances are those which decompose naturally in the environment naturally and are considered beneficial for the environment. ... Non-biodegradable substances are those wastes which do not decompose naturally in the environment, causes pollution and are also harmful to the living being.
4. Waste segregation" means dividing waste into dry and wet. Dry waste includes wood and related products, metals and glass. Wet waste typically refers to organic waste usually generated by eating establishments and are heavy in weight due to dampness.
5. To put it simply, sanitary landfills operate by layering waste in a large hole. The deepest spots can be up to 500 feet into the ground, like Puente Hills, where a third of Los Angeles County's garbage is sent. As materials decompose, landfill gas experts continuously monitor groundwater to detect any leakage.
6. Paper is made in two steps: Cellulose fibers are extracted from a variety of sources and converted to pulp. Pulp is combined with water and placed on a paper making machine where it is flattened, dried, and cut into sheets and rolls
7. Bring a bag. ...

• Invest in a reusable water bottle. ..
• Bring your own reusable cup. ...
• Refuse single-use items. ...
• Avoid products with microbeads. ...
• Shop in bulk. ...
• Make sure your waste goes to the right place. .
• Compos

8.Answer: Sterilization- is the complete destruction of all microscopic life on surface. Sanitation- is another word for cleaning. Both words have the same meaning; removing visible contamination and debris and dramatically lowering the number of germs on the surface.

Explanation:

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