I think it's low grade lime stone..
Its binary! In mathematics and digital electronics, a binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically "0" (zero) and "1" (one).
Answer:
Decode. To change how information is represented so that it can be read by a person.
Explanation:
Decoding is the ability to apply your knowledge of letter-sound relationships, including knowledge of letter patterns, to correctly pronounce written words. Understanding these relationships gives children the ability to recognize familiar words quickly and to figure out words they haven't seen before.
Answer:
d. Emperor penguin family or b. Penguin colony