Clouds are the masses of small water droplets or tiny ice crystals.

(A) Clouds are classified according to their appearance and height.

(B) Cirrus clouds are high altitude clouds, which are usually feathery shaped and composed entirely of ice crystals.

(C) Nimbostratus clouds are mid level clouds producing sporadic rain.

(D) Altocumulus are the heap-like clouds having flat bases and rounded tops.

Choose the correct answer from the options given below:

Option 1 -> (A), (B), and (D) are correct statements about cloud classification and types.

Option 2 -> (C) is incorrect because nimbostratus produces continuous rain, not sporadic.

Option 3 -> (C) is incorrect; nimbostratus clouds produce steady, continuous precipitation, not sporadic rain.

Option 4 -> (C) is incorrect due to the same reason above.

Hence, Option 1: (A), (B) and (D) only -> Statement (A) correctly describes cloud classification by appearance and height; Statement (B) accurately describes cirrus clouds as high-altitude, feathery, ice crystal clouds; Statement (D) correctly describes altocumulus clouds as heap-like with flat bases and rounded tops. Statement (C) is FALSE because nimbostratus clouds produce continuous, steady rain, not sporadic rain -> correct