Explanation

• Swimmers make their bodies streamlined to reduce friction underwater.
• It allowing them to move more efficiently and quickly through the water.

Explanation

• Solids have a fixed shape and a fixed volume.
• It meaning their particles are closely packed and have a regular arrangement.

Explanation

• The hypocotyl hook is a structure formed during the germination of dicotyledonous seeds, such as beans (Phaseolus vulgaris).
• It is a curved region of the hypocotyl (the stem region between the cotyledon and the root) that protects the delicate cotyledon and plumule (shoot) as they emerge from the seed coat.

Explanation

• French bean (Phaseolus vulgaris) is a dicotyledonous plant, belonging to the family Fabaceae (Leguminosae).
• Dicot plants have two cotyledons (seed leaves) in their seedlings, and their leaves typically have net-like veins.

Explanation

• A wheel with a rod, called an axle, through its center lifts or moves loads.
• Example: Screw driver, handle is wheel and its shaft is axle, a car wheel.

The wheel and axle simple machine is used in many applications, such as:

• Transportation (cars, bicycles, etc.)
• Lifting heavy loads (cranes, winches, etc.)
• Moving objects (wheelbarrows, shopping carts, etc.)

Explanation

• Solids can be converted into liquids by heating, a process known as melting.
• This occurs when the particles of the solid gain enough energy to break free from their fixed positions and start moving freely, resulting in a liquid state.

Explanation

• Decomposers are organisms that break down dead and waste products of producers and consumers, releasing nutrients back into the environment.
• Examples of decomposers include bacteria, fungi, and detritivores like earthworms and insects.

Explanation

• Carnivores are animals that eat only meat, primarily from other animals.
• Examples of carnivores include lions, tigers, bears, wolves, and sharks.

Explanation

• Marasmus is a severe form of protein-energy malnutrition.
• It develops due to a lack of sufficient calories and essential nutrients.
• As a result of starvation, poverty, and inadequate food supply.

Explanation

Shoes resist the earth.

When you walk, the friction between the soles of your shoes and the ground prevents slipping and allows you to move forward.

The grip provided by the shoes helps you resist the resistance offered by the earth's surface,

which can vary depending on factors like terrain and weather conditions.