The mainland of India extends from ___ in the north to ___ in the south.

Kashmir; Kanyakumari

True or False: The distance between two longitudes remains the same everywhere.

False. The distance between two longitudes decreases towards the poles.

What is the significance of the standard meridian of India being at 82º30 E?

It is used to determine Indian Standard Time, which is ahead of Greenwich Mean Time by 5 hours and 30 minutes.

Fill in the blank: The actual distance measured from north to south extremity of India is ___ km.

3,214

What variation in degrees is observed in the longitudinal extent of India, and what does this imply?

The variation is nearly 30 degrees, which causes a time difference of nearly two hours between the easternmost and westernmost parts of the country.

True or False: India lies entirely within the tropics.

False. The northern part lies in the sub-tropical zone or warm temperate zone.

Fill in the blank: The southern boundary of India extends up to ___ N latitude in the Bay of Bengal.

6º45

The Peninsular Block of India is primarily composed of which types of rocks?

The Peninsular Block is primarily composed of very ancient gneisses and granites.

True or False: The Himalayan region is part of the Indo-Australian Plate.

False. The Himalayas are not part of the Indo-Australian Plate; they are a result of the collision between the Indian Plate and the Eurasian Plate.

___ and ___ are examples of east-flowing rivers that form deltas before entering into the Bay of Bengal.

Mahanadi and Godavari.

What geological feature separates the northeastern parts of the Peninsular Block from the Chotanagpur plateau?

The Media fault in West Bengal separates the northeastern parts of the Peninsular Block from the Chotanagpur plateau.

Fill in the blank: India's area accounts for ___ percent of the world’s land surface area.

2.4 percent.

True or False: The Indo-Ganga-Brahmaputra Plain was originally a geo-synclinal depression.

True

Fill in the blank: The average depth of alluvial deposits in the Indo-Ganga-Brahmaputra Plain ranges from ___ to ___ meters.

1000 to 2000

What type of landforms indicate the youthful stage of the Himalayas?

Gorges, V-shaped valleys, rapids, and waterfalls

True or False: The Indo-Ganga-Brahmaputra Plain was formed solely by the river Indus.

False: It was formed by the rivers Indus, Ganga, and Brahmaputra.

What is the primary cause of the development of faults, folds, and thrust plains in the Himalayas?

The interplay of exogenic and endogenic forces

The northern and northeastern Himalayas were formed as a result of the convergence of which two tectonic plates?

The Eurasian plate and the Gondwana plate.

Fill in the blank: The Himalayas are considered a ___ zone geologically.

Unstable

True or False: The altitudinal variations in the western half of the Himalayas are greater than those in the eastern half.

False. The altitudinal variations are greater in the eastern half than in the western half.

Fill in the blank: The outermost range of the Himalayas, composed of unconsolidated sediment, is called the ___.

Shiwaliks

True or False: The Great Himalayas consist of the lowest peaks in the Himalaya range.

False. The Great Himalayas consist of the loftiest peaks in the Himalaya range.