Explanation

• Human beings are omnivores because we eat a variety of foods including plants (fruits, vegetables, grains), animals (meat, poultry, fish), and products derived from animals (dairy, eggs).

Explanation

If a plants have needle like leaves to desert environment would they belong.

Explanation

• Global Positioning System (GPS) is a scientific method that uses a network of satellites to provide location data and track the movement of vehicles, ships, and aircraft.
• GPS technology allows for accurate navigation, tracking, and monitoring of movements.

Explanation

• A Spectroscope is used to identify the chemical elements present in a star and determine its composition.
• By analyzing the light spectrum, astronomers can also determine the star's temperature, velocity, and distance from Earth.

Explanation

• Pascal's Principle is the fundamental principle behind the operation of hydraulic systems.
• They are used in a wide range of applications, including construction equipment, brakes, lifts, and presses.
• It allows for the multiplication of force and motion, making it a crucial concept in engineering and technology.

Explanation

• An atom typically has an equal number of electrons and protons.
• They are equal in number to the atomic number (Z) of the element.
• This number is unique to each element and determines the properties of the element.

Explanation

• The speed of sound in aluminium is approximately 6420 meters per second.
• It is significantly faster than the speed of sound in air due to aluminium's higher density and elastic properties.

The speed of sound in different materials:

• Air: 332 m/s
• Sea water: 1530 m/s
• Lead: 2160 m/s
• Gold: 3240 m/s
• Brick: 3650 m/s
• Copper: 4760 m/s
• Glass: 5100 m/s
• Aluminium: 6420 m/s

Explanation

A change in physical appearance or state of a substance, such as a change in shape, size, color, or phase (solid, liquid, gas), is called a Physical Change.

Explanation

• C6H12O6 + 6O2 → 6CO2 + 6H2O
• This is the correct equation for cellular respiration in plants, where glucose (C6H12O6) is broken down to produce carbon dioxide (CO2) and water (H2O), releasing energy in the process.

Explanation

• The large vacuole is a membrane-bound organelle found in plant cells that stores water, salts, sugars, and other substances.
• It plays a crucial role in maintaining cell turgor pressure, supporting cell growth, and storing nutrients and waste products.