Explanation

The troposphere is the lowest layer of the atmosphere.

This is the layer where we live and where weather happens.

Temperature in this layer generally decreases with height.

The boundary between the stratosphere and the troposphere is called the tropopause.

Explanation

Yardangs and Earth Pillars are geological features formed by erosion.

While Balban is unrelated to erosion as it refers to a historical figure, not a natural feature.

Explanation

Blood groups are identified by specific antigens present on the surface of red blood cells.

These antigens determine compatibility for blood transfusions.

They are key to classifying blood types like A, B, AB, and O.

Explanation

Herbivore: Cow

Herbivores are animals that primarily feed on plants and plant-based materials.

Carnivore: Cat

Carnivores are animals that primarily feed on meat and animal tissue.

Omnivore: Dog

Omnivores are animals that feed on both plant and animal matter.

Explanation

the momentum of an object is equal to the mass of the object times the velocity of the object.

AGM 25-12-2022

Explanation

Photosynthesis occurs in the chloroplast, an organelle in plant cells containing chlorophyll.

It captures sunlight to produce food through the conversion of carbon dioxide and water.

Explanation

A mature tree can absorb approximately 22 kilograms (or 48 pounds) of carbon dioxide from the atmosphere annually.

This is a remarkable process called carbon sequestration, where trees help remove CO2 from the atmosphere, storing carbon in their trunks, branches, roots, and soil.

Explanation

In Pakistan, approximately 160,000 (0.16 million) people die each year due to tobacco-related diseases.

It including cancer and cardiovascular issues.

Explanation

10^-12: Picosecond (ps)

10^-6: Microsecond (μs)

10^-9: Nanosecond (ns)

10^-3: Millisecond (ms)

10^-18: Attosecond (as)

10^-15: Femtosecond (fs)

10^-21: Zeptosecond (zs)

10^-24: Yoctosecond (ys)

Explanation

Smoke from industries causes Smog.

It is a type of air pollution caused by the interaction of smoke, gases, and other atmospheric pollutants.

Smog is a harmful mixture of smoke, sulfur dioxide, and other pollutants that can cause respiratory problems and other health issues.