Photosynthesis is the process by which plants convert sunlight into chemical energy using water and carbon dioxide. It is fundamental for the growth and survival of plants.

H2O represents water, which consists of two hydrogen atoms bonded with one oxygen atom. This formula is a basic building block in chemistry.

2 is the smallest prime number and the only even prime, being divisible only by 1 and itself. The other options are composite numbers with additional factors.

Brazil's official language is Portuguese, stemming from its colonial past. This differentiates it from many other South American nations where Spanish is more common.

Gravity is the force that attracts objects toward the center of the Earth, keeping them grounded. This fundamental force plays a key role in our daily experience of the physical world.

Subtracting 3 from both sides of the equation gives 2x = 8. Dividing both sides by 2 results in x = 4.

A triangle's interior angles always add up to 180 degrees, a fundamental property in geometry. This is used to solve various geometric problems.

Nitrogen constitutes about 78% of Earth's atmosphere, making it the most abundant gas. This fact is crucial for understanding atmospheric composition.

George Washington was the first President of the United States and set many important precedents for the office. His leadership is a cornerstone of American history.

A simile directly compares two different things using 'like' or 'as'. The phrase 'Life is like a box of chocolates' clearly uses 'like' to make a comparison.

The area of a rectangle is found by multiplying its length by its width: 8 x 5 equals 40. This calculation is a fundamental concept in geometry.

Newton's Third Law states that for every action, there is an equal and opposite reaction. This principle applies universally in physics.

Carbon has an atomic number of 6, meaning it contains six protons in its nucleus. This element is vital for the chemistry of life.

The Sahara Desert is located in Africa, making it the largest hot desert in the world. This knowledge is fundamental in world geography.

Perfect competition is characterized by many buyers and sellers, with no single party able to dictate prices. This economic model represents an ideal market condition.

Expanding the equation gives 3x - 6 = 2x + 4. Subtracting 2x from both sides leads to x - 6 = 4, and adding 6 to both sides results in x = 10.

Near the Earth's surface, objects in free fall accelerate at about 9.8 m/s² downward due to gravity. This acceleration is nearly constant when air resistance is negligible.

In a neutralization reaction, an acid reacts with a base to produce salt and water. This reaction occurs when H+ ions from the acid combine with OH- ions from the base.

Allegory is a narrative technique where characters and events symbolize broader abstract ideas or moral concepts. This device allows writers to express complex themes in a more accessible way.

The Montgomery Bus Boycott was a pivotal event that challenged segregation in public transportation. Its success demonstrated the power of nonviolent protest and collective action in the fight for civil rights.