Answer:

• narendra modi
• a medical instrument for listening to the action of someone's heart or breathing, typically having a small disc-shaped resonator that is placed against the chest, and two tubes connected to earpieces.

• Abraham Lincoln was an American lawyer and statesman who served as the 16th president of the United States from 1861 until his assassination in 1865.
• an organized military force equipped for fighting on land.
• the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

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Answer:

1.Narendra Modi

2.a medical instrument for listening to the action of someone's heart or breathing, typically having a small disc-shaped resonator that is placed against the chest, and two tubes connected to earpieces.

3.Abraham Lincoln was the 16th president of the United States. He preserved the Union during the U.S. Civil War and brought about the emancipation of slaves.

During his time in office, he oversaw the American Civil War, abolished slavery and fundamentally changed the role of the federal government in American life and politics.

4.An army, ground force or land force is a fighting force that fights primarily on land. In the broadest sense, it is the land-based military branch, service branch or armed service of a nation or country. It may also include aviation assets by possessing an army aviation component.

5.Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

6.Transport, or transportation, is the movement of humans, animals, and goods from one location to another. In other words, the action of transport is defined as a particular movement of an organism or thing from a point A to a point B. Modes of transport include air, land, water, cable, pipeline, and space.

7.Sludge is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, wastewater treatment or on-site sanitation systems.

8.Sewage is a type of wastewater that is produced by a community of people. It is typically transported through a sewer system. Sewage consists of wastewater discharged from residences and from commercial, institutional and public facilities that exist in the locality. Sub-types of sewage are greywater and blackwater.

9.Inside sedimentation tank there is absence of air. Anaerobic decomposition of slurry takes place in the sedimentation tank and due to this methane, carbon dioxide, etc. gases evolve from this which are called biogas.

10.Biogas is a mixture of gases, primarily consisting of methane, carbon dioxide and hydrogen sulphide, produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste and food waste. It is a renewable energy source.

11.The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as visible light, ultraviolet light, and infrared radiation. It is by far the most important source of energy for life on Earth.

No  Earth is not a natural Satellite.

12.The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.

13.Many scientists believe that RNA, or something similar to RNA, was the first molecule on Earth to self-replicate and begin the process of evolution that led to more advanced forms of life, including human beings

14.Nobody knows if we are alone in the universe or not.All you have to do is look at our bodies, be aware of our plethora of written literature,

15.Consciousness, at its simplest, is sentience or awareness of internal and external existence.

16.Dreams as memory aides One widely held theory about the purpose of dreams is that they help you store important memories and things you've learned, get rid of unimportant memories, and sort through complicated thoughts and feelings. Research shows that sleep helps store memories.

17.Stuff is a works or objects,etc.

18.Well, as it happens, there are others. Among physicists, it's not controversial. Our universe is but one in an unimaginably massive ocean of universes called the multiverse. If that concept isn't enough to get your head around, physics describes different kinds of multiverse.

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