Question

Key words 2. Symbols 1. Projection 3. Geographer​

Answer 1

Answer:

2.A symbol whose name starts with a colon (' : ') is called a keyword symbol. These symbols automatically act as constants, and are normally used only by comparing an unknown symbol with a few specific alternatives. See Constant Variables. A symbol name can contain any characters whatever.

1.it is a lens.The " projector ( projection ) lens is the final lens in the imaging lens system.

3.A geographer is a physical scientist, social scientist or humanist whose area of study is geography, the study of Earth's natural environment and human society, including how society and nature interacts.

Explanation:

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