PMS PAST PAPER HELD ON 04.04.2022Sun spots were first observed by which among the following?
A) Albert Einstein
B) Isaac Newton
C) Rene Descartes
D) Thomas Harriot
Thomas Harriot was an English astronomer who made some of the earliest recorded telescopic observations of sunspots in 1610. His work predates many later astronomers and helped establish systematic solar observation in astronomy.
PMS PAST PAPER HELD ON 04.04.2022
A)
Sweet smelling fruits
B)
Seedless fruit
C)
Summer fruits
D)
Small fruits
Parthenocarpy is the development of fruits without fertilization, resulting in seedless fruits. Common examples include bananas and some varieties of grapes and oranges widely preferred in commercial agriculture.
PMS PAST PAPER HELD ON 04.04.2022
A)
CaCO₃
B)
CaO
C)
CO₂
D)
Ca(OH)₂
When sodium bicarbonate (NaHCO₃), also known as baking soda, is heated, it decomposes and releases carbon dioxide gas (CO₂). The reaction also produces sodium carbonate and water, which is why baking soda is widely used in baking and fire extinguishers.
PMS PAST PAPER HELD ON 04.04.2022
A)
Nikola Tesla
B)
Guglielmo Marconi
C)
Alexander Graham Bell
D)
Samuel Morse
Guglielmo Marconi successfully transmitted radio signals over long distances and is widely recognized as the pioneer of practical wireless communication. His experiments laid the foundation for modern radio, television, and wireless technology.
PMS PAST PAPER HELD ON 04.04.2022
A)
Vitamins
B)
Carbohydrates
C)
Minerals
D)
Proteins
Most enzymes are proteins that act as biological catalysts in living organisms. They speed up chemical reactions necessary for digestion, metabolism, respiration, and many other cellular activities without being consumed themselves.
PMS PAST PAPER HELD ON 04.04.2022
A)
Scurvy
B)
Rickets
C)
Night blindness
D)
Fibrosis
Vitamin D deficiency causes rickets in children, leading to weak and soft bones due to improper calcium absorption. In adults, a similar condition called osteomalacia can occur, causing bone pain and weakness.
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