Explanation

Given:

Area = 42 cm²

Bases: a = 4.6 cm, b = 2.4 cm

Area formula: Area = (1/2) × (a + b) × h

42 = (1/2) × (4.6 + 2.4) × h

42 = (1/2) × 7 × h

42 = 3.5 × h

h = 42 / 3.5

h = 12

Explanation

By whom was this article written?

This is the correct passive voice form of the question "Who wrote this article?"

"By whom" is the grammatically correct formal structure for starting a passive question.

Explanation

Sphingomonas is a genus of bacteria being studied for its ability to biodegrade polythene and other plastics efficiently.

Scientists are exploring its potential to shorten plastic degradation from hundreds of years to just a few months.

Explanation

She said that she might go to the party.

In reported speech, "may" changes to "might".

The pronoun "I" becomes "she" to match the subject of the reporting clause.

Explanation

Processed food is any food that has been changed from its natural state by methods like canning, freezing, or adding preservatives.

These changes are made for safety, shelf-life, and convenience, such as ready-to-eat meals or packaged snacks

Explanation

Given y varies directly with x, so y = kx.

Given y = 99 and x = 11,

99 = k × 11

k = 9

Now, y = 9x

When x = 3,

y = 9 × 3

y = 27

Explanation

Learning objectives define what students are expected to know, understand, or do after instruction — making them the foundation of curriculum design.

All other elements like content, teaching methods, and assessment are aligned to these objectives.

Explanation

Explanation

"Who" is used for people and sometimes for pets (like cats or dogs) when they are personified or named (e.g., "Mano").

Since Mano is a named cat and the subject of the clause, "who loves milk" is correct.

Explanation

The Indian National Congress was founded on December 28, 1885, at Gokuldas Tejpal Sanskrit College in Bombay as a political party.

Its headquarters are in New Delhi.

Allan Octavian Hume was appointed as General Secretary.

Womesh Chunder Bonnerjee was elected the first President.