in the passage, the author states that, "trenches became a necessity as well as
a strategy for winning the war". in what ways does the author support this
statement? use evidence from the text to support your response.

Orbit is represented by the blank space

The virus is considered to be are living item since they have hereditary material dnas or rnas. they can imitate and change. they respond to boosts, for example, radiation, chemicals, and warmth. they have antigenic properties. they are proficient to duplicate with a same hereditary constituent.

Of the cold they can survive in the cold