A basin is a bowl-shaped depression or lower area of land on the Earth's surface. It has sides higher than the bottom and collects rain, rivers, or sediments.
Gigantic clouds contain dust and gas in space called:...?
(A) Comet
(B) Galaxy
(C) Milky Way
(D) None of these
✅ Correct Answer:None of these
Comments
Gigantic clouds contain dust and gas in space called:...?
Explanation:
Gigantic clouds containing dust and gas in space are called nebulas (or nebulae). These clouds are often the birthplaces of stars and planetary systems. There are different types of nebulae, including:
Emission Nebulae: Glow due to ionized gases emitting light.
Reflection Nebulae: Reflect light from nearby stars.
Dark Nebulae: Dense clouds of dust that block light from behind them.
Planetary Nebulae: Formed from the outer layers of dying stars.
Examples include the Orion Nebula and the Horsehead Nebula. These clouds are crucial in the lifecycle of stars and galaxies.
Comments
Stethoscope was invented by___________...?
Explanation:
The stethoscope was invented by René Laennec, a French physician, in 1816. He created it to improve the ability to listen to heart and lung sounds without placing his ear directly on the patient’s chest. His original design was a simple wooden tube, which later evolved into the modern stethoscope used today.
Density is lowest at the surface, where the water is the warmest. As depth increases, there is a region of rapidly increasing density with increasing depth, which is called the_________...?
(A) Pressure
(B) Phytoplankton
(C) Pycnocline
(D) Salinity
✅ Correct Answer:Pycnocline
Comments
Density is lowest at the surface, where the water is the warmest. As depth increases, there is a region of rapidly increasing density with increasing depth, which is called the_________...?
Density is lowest at the surface, where the water is the warmest. As depth increases, there is a region of rapidly increasing density with increasing depth, which is called the_________...?
(A) Pressure
(B) Phytoplankton
(C) Pycnocline
(D) Salinity
✅ Correct Answer:Pycnocline
Comments
Density is lowest at the surface, where the water is the warmest. As depth increases, there is a region of rapidly increasing density with increasing depth, which is called the_________...?