Question

(1)What is Plough?
(2) What is decomposition?

(3)Name the first antibiotic discovered.
(4) Write Property of rayon
(5) Define : Fossil fuels
(6) Whole oxides are acidic Metal or Non-metal?
(7)
What is deforestation?
(8) What is Red data book?
(9) Define: Muscular force
(10) Full form of CNG
(11) Which fuel has highest calorific value?
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Answer 1

Answer:

1) a large farm tool which is pulled by a tractor or by an animal. A plough turns the soil over ready for seeds to be planted.

2)Decomposition is the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts. Animals, such as worms, also help decompose the organic materials. Organisms that do this are known as decomposers.

3)penicillin.

4)Rayon is moisture absorbent (more so than cotton), breathable, comfortable to wear, and easily dyed in vivid colors. It does not build up static electricity, nor will it pill unless the fabric is made from short, low-twist yarns.

5)a natural fuel such as coal or oil, that was formed millions of years ago from dead animals or plants in the ground.

6)In general, metal oxides are basic and non-metal oxides are acidic. Some metal oxides react with water to form alkaline solutions.Non-metal oxides react with water to form acids.

7)Deforestation refers to the decrease in forest areas across the world that are lost for other uses such as agricultural croplands, urbanization, or mining activities. Greatly accelerated by human activities since 1960, deforestation has been negatively affecting natural ecosystems, biodiversity, and the climate.

8)Red Data Book of the Russian Federation, also known as Red Book or Russian Red Data Book is a state document established for documenting rare and endangered species of animals, plants and fungi, as well.

9)Physical strength is the measure of an animal's exertion of force on physical objects. Increasing physical strength is the goal of strength training.

10)CNG - Compressed natural gas.

11)hydrogen.

Hope it helps you!!