Explanation

Sand is primarily composed of silicon dioxide (SiO₂), formed when silicon and oxygen combine.

It is a common natural material found in deserts, beaches, and riverbeds.

Explanation

Evaluate the polynomial at x = 4

3(4)³ - 2(4)² - 150

= 3(64) - 2(16) - 150

= 192 - 32 - 150

= 10

Explanation

2⅔ can be written as 2^(2/3), which equals ∛(2²) = ∛4 = ³√4.

Explanation

Explanation

"Cut" is an irregular verb because its past tense and past participle forms are the same: cut – cut – cut.

Laugh, shout, paint are regular verbs that follow the pattern of adding -ed in past tense.

Explanation

Daily spending = 35 rupees, so for 7 days: 35 × 7 = 245 rupees.

Simple multiplication gives the total weekly expenditure.

Explanation

The infinitive phrase "to sleep" is modifying the noun "day", telling what kind of day.

Since it describes or qualifies a noun, it functions as an adjective.

Explanation

9592 ÷ 22 = 436

Quotient means the result of division without remainder.

Explanation

Given polynomial: p(x) = x² - 4x + 3

Step 1: Factor the polynomial

p(x) = (x - 3)(x - 1)

Step 2: Find the zeros

Zeros are x = 3 and x = 1

Explanation

Tetanus spores, found in soil and dust, enter the body through deep wounds or punctures.

In such low-oxygen environments, the bacteria produce toxins that affect muscles and nerves.