Geography

Step 1: Understanding the Concept:
The question asks to identify the specific geographical feature (a strait) that separates India's Andaman Islands from the islands belonging to Myanmar.
Step 2: Detailed Explanation:
The Andaman and Nicobar Islands are an archipelago in the Bay of Bengal. The northernmost island group of the Andamans is North Andaman Island. To the north of this lies the Coco Islands, which are politically part of Myanmar. The narrow but strategically important body of water that separates India's North Andaman Island from Myanmar's Coco Islands is known as the Coco Strait or Coco Channel.
Step 3: Final Answer:
The strait that separates the North Andaman islands from the islands of Myanmar is the Coco Strait.

Step 1: Understanding the Concept:
This question tests knowledge of basic cloud classification in meteorology.
Step 2: Detailed Explanation:
Let's evaluate each statement about clouds:

(A) Clouds are classified according to their appearance and height. This is correct. The primary international system of cloud classification uses a Latin-based system that groups clouds by their form (appearance - e.g., cirrus, stratus, cumulus) and their altitude or height (e.g., high, middle, low).
(B) Cirrus clouds are high altitude clouds, which are usually feathery shaped and composed entirely of ice crystals. This is a correct description. Cirrus clouds are thin, wispy, and found at high altitudes where temperatures are low enough for them to be made of ice crystals.
(C) Nimbostratus clouds are mid level clouds producing sporadic rain. This is largely correct. Nimbostratus clouds are typically found in the low to middle altitudes and are dark, grey, featureless layers associated with continuous (rather than sporadic or showery) rain or snow. The term "sporadic" might be slightly imprecise, but the classification as a mid-level rain-producing cloud is correct.
(D) Altocumulus are the heap-like clouds having flat bases and rounded tops. This description better fits Cumulus clouds. Altocumulus clouds are mid-level clouds that appear as white or greyish patches, often in layers or waves with a mottled, lumpy appearance. The classic "heap-like clouds with flat bases and rounded tops" is the definition of Cumulus clouds, which are low-level clouds. Therefore, this statement is incorrect.
Statements (A), (B), and (C) are correct.
Step 3: Final Answer:
The correct option is the one that includes only the correct statements (A), (B), and (C).

Step 1: Understanding the Concept:
The question asks to identify the river associated with a specific geographical feature in India, the Gandikota Gorge.
Step 2: Detailed Explanation:
Gandikota is a village and historical fort on the right bank of the Penna River (also known as Pennar) in the Kadapa district of Andhra Pradesh. The river has carved a deep gorge through the Erramala hills, creating a spectacular landscape that is often referred to as the "Grand Canyon of India." The other rivers listed flow through entirely different regions of India and are not associated with this gorge.
Step 3: Final Answer:
The Penna river flows through the Gandikota Gorge.