331. Which of the following fuels causes minimum environmental pollution?

1. Kerosene
2. Diesel
3. Coal
4. Hydrogen

Option “4” is correct
Most of environmental (air) pollution results from the burning of fossil fuels, such as coal, oil, natural gas, and gasoline to produce electricity and power. All these produce harmful CO2 or its variants. On the contrary, when hydrogen burns in air, it produces nothing but water vapor.
332. Enzymes are –

1. Proteins
2. Minerals
3. Oils
4. Fatty acids

Option “1” is correct
Enzymes are biological molecules (proteins) that act as catalysts and help complex reactions occur everywhere in life. They speed up reactions by providing an alternative reaction pathway of lower activation energy.
333. Mangroves are plants that have –

1. Modified Roots
2. Modified Stems
3. Respiratory Roots
4. Respiratory Stems

Option “3” is correct
A mangrove is a shrub or small tree that grows in coastal saline or brackish water. They have respiratory roots.
334. Rodentia Sciurus is the scientific name of –

1. Rat
2. Platypus
3. Squirrel
4. Beaver

Option “3” is correct
Rodentia Sciurus is scientific name of Squirrel.
335. Which of the following is a symptom of haemophilia?

1. Night Blindness
2. No clotting of Blood
3. Rickets
4. Loss of haemoglobin

Option “2” is correct
Haemophilia,is a mostly inherited genetic disorder that impairs the body’s ability to make blood clots, a process needed to stop bleeding.
336. Felis Catus is the scientific name of –

1. Cat
2. Dog
3. Mouse
4. Porcupine

Option “1” is correct
Felis Catus is the scientific name of cat.
337. Pneumonia affects which of the following organs of human body?

1. Kidneys
2. Lungs
3. Throat
4. Liver

Option “2” is correct
Pneumonia is an illness of the lungs and respiratory system in which microscopic air-filled sacs in the lungs become inflamed and flooded with fluid causing cough with phlegm, fever, chills, and difficulty breathing.
338. Mendel is known as –

1. Father of Physiology
2. Father of Geology
3. Father of Genetics
4. Father of Biology

Option “3” is correct
Gregor Mendel is known as the “father of modern genetics”.
339. Sugarcane is a type of _____.

1. Creeper
2. Tree
3. Shrub
4. Grass

Option “4” is correct
Sugarcane is grass of the family Poaceae, primarily cultivated for its juice from which sugar is processed.
340. Who is commonly known as “the Father of Microbiology”?

1. Robert Hooke
2. Antonie van Leeuwenhoek
3. Carl Linnaeus
4. Charles Darwin

Option “2” is correct
Anton van Leeuwenhoek (1632 – 1723) was a Dutch tradesman and scientist, best known for his work on the development and improvement of the microscope and also for his subsequent contribution towards the study of microbiology so he is called as father of microbiology.
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48 thoughts on “Biology”

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