Explanation

A number divisible by both 2 and 5 is automatically divisible by their LCM = 10.

For example, 20 ÷ 2 = 10, 20 ÷ 5 = 4, and 20 ÷ 10 = 2.

Explanation

Explanation

"Though" is a conjunction used to connect two contrasting ideas: he worked hard but didn’t win.

It introduces a subordinate clause and shows contrast or concession in the sentence.

Explanation

Fixing is the process in photography that removes residual silver halide from the image.

Without fixing, silver halide remains light-sensitive and can darken the image upon further exposure.

Explanation

Present Continuous Tense:

Structure:

Subject + is/am/are + verb(-ing)

→ Describes an action happening right now.

He is writing an essay. → Present continuous

Explanation

Self-pollination occurs when pollen from the same flower fertilizes the ovule, common in bisexual flowers like rose.

Maize, papaya, and cotton mainly undergo cross-pollination due to separate male and female parts or flower arrangements.

Explanation

To determine significant figures in 10.03:

• All non-zero digits are significant → 1 and 3
• Zeros between non-zero digits are significant → 0 between 1 and 3
• Zeros after a decimal and a non-zero digit are also significant → the 0 after the decimal is significant

So: 1, 0, 0, 3 → 4 significant figures

Explanation

In questions and negative sentences, we commonly use "anybody" (or "anyone") instead of "somebody/someone".

So, the correct sentence is: "Does anybody seem to care about the environment nowadays?" 

Explanation

Formative assessment is conducted during the learning process to monitor progress and provide immediate, specific feedback.

It helps both teachers and students identify areas for improvement and adjust instruction accordingly.

Explanation

To find the remainder, we can use the Remainder Theorem, which states that the remainder of a polynomial f(x) divided by x - a is f(a). In this case, we need to divide by x + 2, so we'll use x = -2.

f(x) = 2x⁴ - 3x² + 5x - 7

f(-2) = 2(-2)⁴ - 3(-2)² + 5(-2) - 7

= 2(16) - 3(4) - 10 - 7

= 32 - 12 - 10 - 7

= 32 - 29

= 3