Heating and cooling of the atmosphere

Correct answer: C. Because radiation absorption and heat balance are affected by many factors

Ozone concentration is controlled by photochemical production, ultraviolet destruction, transport, and mixing. Temperature depends not only on where ozone absorbs radiation, but also on radiative emission, vertical motion, and the surrounding heat balance. Because these controlling processes peak at different heights, the ozone maximum and temperature maximum need not coincide. Thus option C is correct; the other choices contradict basic atmospheric physics.

Correct answer: B. Dry bare hot surface with relatively cooler air above

A dry hot surface uses more energy to raise air temperature directly so sensible heat is high. In exams link dry surfaces with higher sensible heat.

Correct answer: A. Because energy goes into latent heat

Evaporation uses energy for phase change instead of raising temperature. In exams treat latent heat as a temperature regulator.

Correct answer: B. Dry area where sensible heat exceeds latent heat

A high Bowen ratio indicates dry surfaces and greater sensible heat. In exams remember it as a sign of aridity.

Correct answer: B. Thin lower layer directly touching the surface

The surface cools first and then cools the adjacent air by conduction. In exams consider night cooling as starting in the surface layer.

Correct answer: A. Warm air above and cold air below create stable layers

Cold dense air remains trapped below and the warmer layer above blocks vertical movement. In exams link inversion with stability.

Correct answer: B. Cold air drainage and radiational cooling

Cold dense air drains from slopes into valleys and clear nights cool the surface further. In exams link valley frost with cold air drainage.

Correct answer: A. Concrete and asphalt store and release more heat

Urban surfaces heat strongly and create rising warm air. In exams also link urban heat island with convection.

Correct answer: A. Incoming shortwave energy will decrease

Thick clouds reflect and absorb more solar energy reducing energy reaching the surface. In exams consider daytime clouds as lowering maximum temperature.

Correct answer: A. Clouds absorb terrestrial longwave energy and counter radiate

Clouds do not allow longwave heat to escape freely so the night cools less. In exams treat clouds as a night heat blanket.

Correct answer: A. Dust increases solar scattering and dryness increases sensible heat

Dust can reduce energy reaching the surface while dry surfaces can heat air rapidly. In exams separate the combined effects.

Correct answer: A. Rapid loss of longwave heat due to low water vapour and little cloud

With little water vapour and cloud terrestrial radiation escapes easily. In exams link deserts with strong radiational cooling.

Correct answer: A. High specific heat of water and sea breeze

The sea heats and cools slowly and winds moderate temperature. In exams link coasts with maritime influence.

Correct answer: A. Land and water heat and cool at different rates

Land changes temperature quickly while sea changes slowly creating local pressure differences. In exams connect breezes with unequal heating.

Correct answer: A. Latent heat is released and convection is strengthened

Latent heat released during condensation gives extra energy to rising air. In exams understand condensation as a heat-release process.

Correct answer: A. Vertical convection and growing clouds

In instability warm air rises easily and clouds may develop. In exams link instability with convection.

Correct answer: A. Resistance to vertical motion is high

In stability an air parcel tends to return downward after being lifted. In exams link stable layers with weak mixing.

Correct answer: A. Buildings limit the escape of longwave radiation

Tall buildings reduce sky view and heat is repeatedly reflected. In exams link urban canyons with heat trapping.

Correct answer: A. It can make minimum temperature lower

Low water vapour traps less longwave energy so night cooling is stronger. In exams link dry clear nights with lower minimum temperature.

Correct answer: A. Morning surface heating starts convection and mixing

After sunrise the surface warms and mixes the cold lower layer. In exams remember inversion breakup through morning heating.

Correct answer: A. Net energy gain continues for some time after noon

Even after solar altitude begins to fall incoming energy can exceed outgoing energy for some time. In exams link maximum temperature with energy-balance lag.

Correct answer: A. Outgoing energy remains greater than incoming energy through the night

Until sunrise the surface keeps losing energy and enough solar input has not begun. In exams link minimum temperature with overnight heat loss.

Correct answer: A. When strong wind brings a very warm or cold air mass

Strong horizontal motion can change temperature quickly by bringing a new air mass. In exams link advection with air-mass arrival.

Correct answer: A. When cold dry air enters an area at night

Horizontal arrival of cold air can bring near-surface temperature close to freezing. In exams link cold advection with temperature fall.

Correct answer: A. Less solar energy is absorbed due to high albedo

Snow reflects strongly so the surface warms less and gives less heat to air. In exams remember snow by high albedo.