Explanation

Greenhouses are structures designed to provide an optimal environment for plants, particularly during colder seasons.

They trap sunlight, creating a warmer, more stable temperature that promotes plant growth in winter or colder climates.

Explanation

Spur means تحریک ۔ ترغیب

Discourage means حوصلہ شکنی

Explanation

The phrase "has not missed a match since" implies a starting point in the past with continued relevance—Present Perfect Tense is used.

"He has joined the team" correctly matches the tense and meaning.

Explanation

The ozone layer is located in the stratosphere, about 10 to 30 miles above Earth's surface.

It protects the Earth by absorbing most of the Sun's harmful ultraviolet (UV) radiation.

Explanation

To find the marks obtained, multiply the fraction by the total marks:

Marks obtained = 3/5 × 100

= 3 × 20

= 60

Explanation

The method used to evaluate the curriculum is:

• Formative evaluation: This evaluation occurs during the development or implementation of the curriculum and aims to provide feedback for improvement.
• Summative evaluation: This evaluation takes place after the curriculum has been implemented and assesses the overall effectiveness and outcomes.
• Diagnostic evaluation: This evaluation focuses on diagnosing students' strengths and weaknesses to inform instructional decisions and curriculum adjustments.

Explanation

The term information highway refers to the Internet, which is a global system that allows access to vast amounts of information.

Intranet is a private network within an organization, and computer refers to the device used to access the Internet.

Explanation

"Few" is used to indicate a small number of students.

It implying that the class was not sufficient for the teacher to proceed.

Explanation

Let's solve the equation:

x + 5 = 3

Subtract 5 from both sides:

x = 3 - 5

x = -2

Explanation

Using the power of a power rule:

(x^3)^5 = x^(3×5)

= x^15