Explanation

Analogous structures are features that have a similar function but different origins and structures, and are not considered in classification.

Explanation

During charge, the positive electrode is an anode,

and the negative electrode is a cathode.

Explanation

Eutrophication occurs when excess nutrients from fertilizers enter water bodies, stimulating excessive plant growth and depleting oxygen, harming aquatic life.

This can lead to the formation of "dead zones" where few organisms can survive, degrading the ecosystem.

Explanation

Fertilizers are substances containing chemical elements that provide essential nutrients for plant growth, including:

• Nitrates (N) for leaf growth and development
• Phosphates (P) for root development, flower and fruit formation
• Potassium (K) for overall plant health and resistance to disease

Explanation

Seafood is an excellent source of protein because it is typically low in fats (lipids) and high in protein.

Many types of seafood, such as fish and shellfish, are lean sources of protein, making them a popular choice for those looking to reduce their fat intake.

Explanation

If the direction of the magnetic field is reversed, the direction of the force exerted on a charged particle or a current-carrying wire will also be reversed.

This is because the force due to a magnetic field depends on the direction of the field.

The direction of the current or velocity, and the charge of the particle (if applicable).

Explanation

Metals are good conductors of electricity because they have free electrons, also known as conduction electrons or mobile electrons.

These electrons are not tightly bound to a specific atom and are free to move throughout the metal, carrying electrical current.

Explanation

The correct answer is: Light waves, Radio waves, Microwaves

This group consists only of electromagnetic waves, which are waves that propagate through the electromagnetic field.

They do not require a physical medium to propagate.

Explanation

Harvesting is the most important step in the preparation of sugar from sugarcane or sugar beets.

Sugarcane is typically harvested by hand or by machine, and sugar beets are harvested by machine.

The quality of the harvest affects the quality of the sugar produced.

Explanation

Accuracy refers to how close a measured value is to the true or accepted value.

It indicates the degree of agreement between the measured value and the true value.