Explanation

Explanation

Grass is a tree which means بانس 

Bamboo is mostly found in Asia, Africa, South America, and parts of North America

Bamboo releases 35% more oxygen than hardwood forests of equivalent sizes

• Bamboo is the fastest-growing plant. 
• Bamboo blossoms once a lifetime of a human.
• Bamboo can thrive without much care. 
• Bamboo is the world's tallest grass. 
• Bamboo can live for a century or more.
• Bamboo has been used as an alternative building material for centuries.

SH10-8-2023

Explanation

Robert Hooke is known as the founder of cell biology because he first observed and named "cells" in cork (1665).

His discovery laid the foundation for the cell theory developed later by Schleiden and Schwann.

Explanation

Alkali metals (like sodium, potassium, lithium, etc.) are highly reactive, especially with water and oxygen.

Because of this high reactivity, they cannot exist freely in nature — they are always found in the form of compounds (e.g., NaCl, KCl).

Explanation

When the volume of a gas is held constant, increasing the temperature causes the pressure to increase,

While decreasing the temperature causes the pressure to decrease.

This direct relationship is described by Gay-Lussac's Law, which states that for a fixed volume,

The ratio of pressure to absolute temperature is constant. 

Explanation

Chloroform, or trichloromethane, is an organic compound with the formula CHCl₃.

It is a colorless, sweet-smelling, dense liquid that is produced on a large scale as a precursor to PTFE.

Explanation

The chemical formula CaO represents calcium oxide

Composition:

It consists of one calcium (Ca) cation and one oxygen (O) anion. 

Properties:

It is an alkaline, ionic compound. 

Common Names:

Known as quicklime, lime, or calcia. 

Formation:

It is produced by heating calcium carbonate (limestone) in a kiln. 

Uses:

Found in construction materials, agriculture (as a fertilizer), and the paper industry. 

Explanation

An alkaline substance has a pH greater than 7.

The pH scale ranges from 0 to 14, where 7 is neutral, and values above 7 indicate increasing alkalinity.

Common examples of alkaline substances include seawater and soapy water,

Bleach is a strongly alkaline substance with a pH of around 13.  

Explanation

Water reaches its maximum density at approximately 4° Celsius (39.2° Fahrenheit).

This unusual behavior is due to the hydrogen bonds in water, which cause molecules to pack more closely together, increasing density.

Below this temperature, the hydrogen bonds weaken,
And the molecules begin to spread out, decreasing the density as water expands and forms ice. 

Explanation

- Nitrogen (N) = 14  

- Hydrogen (H) = 1 × 3 = 3  

- Total = 14 + 3 = 17