Explanation

Infrared radiation is strongly absorbed by water and by the atmosphere.

Although invisible to the eye, infrared radiation can be detected as warmth by the skin.

Nearly 50 percent of the Sun's radiant energy is emitted in the infrared region of the electromagnetic spectrum, with the rest primarily in the visible region.

Explanation

Flatworms (phylum Platyhelminthes) have unsegmented, flat bodies.

Earthworms and tapeworms have segmented bodies.

Explanation

Tiger, (Panthera tigris), the largest member of the cat family (Felidae)

while

The rusty-spotted cat (Prionailurus rubiginosus) is one of the cat family's smallest members

ND5-07-2023

Explanation

Sunlight entering the water may travel about 1,000 meters into the ocean under the right conditions,

but there is rarely any significant light beyond 200 meters.

The ocean is divided into three zones based on depth and light level.

The upper 200 meters of the ocean is called the euphotic, or "sunlight," zone

ND5-07-2023

Explanation

ایک ایسی بیماری ہے جس سے کمزوری ہوجاتی ہے اور جسم میں خون کی کمی ہوجاتی ہےScurvy

Scurvy is a disease caused by a serious vitamin C deficiency.

Not eating enough fruits and vegetables is the main cause of the disease. 

scurvy can lead to bleeding gums, loosened teeth and bleeding under your skin.

Vitamin C, also known as ascorbic acid, is necessary for the growth, development and repair of all body tissues.

Explanation

The speed of sound in steel at 20°C is approximately 5100–5200 m/s, with 5130 m/s being a widely accepted value.

Sound travels faster in solids like steel due to their high density and elasticity compared to gases and liquids.

Explanation

Vitamin K is found in the following foods: Green leafy vegetables.

Vegetables such as Brussels sprouts, broccoli, cauliflower, and cabbage.

Fish, liver, meat, eggs, and cereals.

Green leafy vegetables and intestinal bacteria are good source of vitamin K

Explanation

The acceleration due to gravity is 9.8 m/s² downward.

This force acts on the ball throughout its motion.

This pulling it back to the ground after it is thrown upwards.

Explanation

Dengue viruses are spread to people through the bites of infected Aedes species mosquitoes

The mosquito becomes infected when it takes the blood of a person infected with the virus.

After about one week, the mosquito can then transmit the virus while biting a healthy person.24

Explanation

 A convex lens is thicker at the centre than at the edges. 

A camera uses a convex lens to focus light rays and form an image on a piece of film or a digital sensor at the back, capturing the scene in front of it.