Answer: Option [C]III. Nitrogen (78.08%)II. Oxygen (20.95%)IV. Argon (0.93%)I. Helium (0.0005%)
Answer: Option [D]Increased Carbon-di-oxide in atmosphere results in rise in Earth temperature. Without carbon dioxide, Earth's natural greenhouse effect would be too weak to keep the average global surface temperature above freezing. By adding more carbon dioxide to the atmosphere, people are supercharging the natural greenhouse effect, causing global temperature to rise.
Answer: Option [B]The correct answer is Troposphere, Stratosphere, Mesosphere, Thermosphere. Earth's atmosphere has a series of layers, each with its own specific traits. Moving upward from ground level, these layers are called the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The exosphere gradually fades away into the realm of interplanetary space.
Answer: Option [D]The correct answer is Stratosphere. Stratosphere is the layer of the atmosphere where planes usually fly. It usually extends up to 50 km above the ground. Most of the jet aircraft fly in the lower layer of the stratosphere, to avoid any turbulence, although thunderstorms do penetrate the stratosphere.
Answer: Option [B]The correct answer is Hygrometer. Relative Humidity of the atmosphere is measured by the wet and dry bulb thermometer also called the Hygrometer. The hygrometer consists of two similar mercury thermometers.