Explanation

Given a right-angled triangle with a base angle of 45°, it's an isosceles right triangle, meaning the base and perpendicular are equal.

Base length = 3 dm

Perpendicular length = 3 dm

Explanation

Explanation

VANISHED means غائب

Disappeared means غائب

Explanation

Indifferent means لاتعلق

Caring means لاتعلق

Explanation

Sori are clusters of sporangia found on the underside of fern leaves (sporophylls).

They are responsible for producing and releasing spores for reproduction.

Explanation

Nascent hydrogen refers to atomic hydrogen (H), which is highly reactive and short-lived.

It is usually produced in situ during chemical reactions.

It is more reactive than molecular hydrogen (H₂).

Explanation

Lactic acid fermentation occurs in skeletal muscles during intense exercise when oxygen is scarce, converting pyruvate to lactate.

It provides rapid but temporary energy, causing muscle fatigue.

Explanation

The sentence follows a common comparative structure: "The + comparative, the + comparative" (e.g., The greater the demand, the higher the price).

"The higher" correctly completes this comparative cause-effect pattern.

Explanation

In a balanced chemical equation, the law of conservation of mass states that atoms are neither created nor destroyed.

So, the number of atoms of each element on the reactant side is always equal to that on the product side.

Explanation

The sentence gives advice or recommendation, which is best expressed using "should."

Correct sentence: Sonia should practice much if she wants to take part in the race.