Explanation

• Silviculture is the science and practice of establishing, growing, managing, and harvesting forest trees.
• It deals with the growth and development of forests.
• It aims to maintain healthy and productive forest resources.

Additional information:

• Forestry: Science and management of forests and forest resources.
• Agriculture: Cultivation of crops and rearing of animals.
• Arboriculture: Cultivation and management of individual trees and shrubs.

Last verified on 05-10-2026

Explanation

• Sericulture is the farming or rearing of silkworms for the production of silk.
• The most commonly cultivated silkworm is Bombyx mori.
• Silkworms feed mainly on mulberry leaves and produce silk fibers to form their cocoons.

Additional information:

• Apiculture: Rearing of honeybees for honey and other products.
• Agriculture: Cultivation of crops and raising of animals.
• Pisciculture: Farming or breeding of fish.

Last verified on 05-10-2026

Explanation

• Geology means the study of the Earth.
• It is also called Earth Science or Geoscience.
• Geology studies the formation, structure, composition, and history of Earth.
• It also examines the processes acting on Earth, such as earthquakes, volcanoes, and erosion.
• A person who studies geology is called a geologist.

Last verified on 15-09-2026

Explanation

• Antarctic Notothenioids live in extremely cold waters.
• Includes Antarctic icefish and Antarctic cod.
• Can live in seawater as cold as −2°C.

Explanation

• Astrology studies the supposed influence of stars and planets on human affairs.
• Origin: Ancient Mesopotamia (modern Iraq).
• Developed by: Sumerians and Babylonians.
• Period: Around the 3rd–2nd millennia BCE.

Explanation

• Amylase breaks down starch.
• Starch → Maltose + smaller sugars.
• Found in saliva and pancreatic juice.
• Salivary amylase starts starch digestion in the mouth

Explanation

• O⁻ (O Negative) is the universal donor blood group.
• It can be transfused to A, B, AB, and O blood groups.
• O⁻ blood lacks A, B, and Rh (D) antigens.

Additional information:

• Universal Recipient: AB⁺ (AB Positive)
• ABO Blood Groups: A, B, AB, O
• Rh Types: Positive (+) and Negative (−)
• Total Common Blood Groups: 8 (A⁺, A⁻, B⁺, B⁻, AB⁺, AB⁻, O⁺, O⁻)

Last verified on 14-07-2026

Explanation

• Seismology is the study of earthquakes and seismic waves that move through and around the Earth.
• A seismologist is a scientist who studies earthquakes and seismic waves.

Last verified on 03-04-2026

Explanation

• Humidity is the measure of the amount of moisture (water vapour) in the air.
• A hygrometer is used to measure relative humidity.
• A psychrometer is an example of a hygrometer.
• Relative humidity tells us the ratio of water vapour present in the air compared with the maximum amount the air can hold at a given temperature.
• Humidity is commonly expressed as a percentage (%).

Last verified on 23-08-2026

Explanation

• Albuminurophobia is a fear of kidney disease.
• The term is associated with an excessive or irrational fear of developing kidney disease.
• Albuminuria refers to the presence of albumin (a protein) in urine.
• The term is related to concerns about kidney health and disease.

Last verified on 22-08-2026