Read the text and decide which answer best fits each gap. Meteors Most of us have at the sky and seen what is commonly called a falling, or shooting, star. These streaks occur when meteors, object generally from the size of dust to fist-size masses, enter the earth’s atmosphere at speeds up to 44 miles per second and ionized (or heated) to incandescence 50 to 75 miles above the earth. Few of these objects survive their encounter our atmosphere. What we see here on earth, mostly at night, is a of light that lasts about a half a second on the . Generally speaking, the larger the material that enters the earth’s atmosphere, the brighter the meteor. Brighter meteors will occasionally leave a smoke trail behind in their path lasting a few seconds; trails produced by very bright meteors, to as fireballs, may last minutes. Fireballs that appear to break up or produce sound are called bolides, from the Greek word bolis meaning missile.

Задание

Read the text and decide which answer best fits each gap.

Meteors
Most of us have ... at the sky and seen what is commonly called a falling, or shooting, star. These ... streaks occur when meteors, object generally ... from the size of dust ... to fist-size masses, enter the earth’s atmosphere at speeds up to 44 miles per second and ionized \(or heated\) to incandescence 50 to 75 miles above the earth. Few of these objects survive their encounter ... our atmosphere.
What we see here on earth, mostly at night, is a ... of light that lasts about a half a second on the ... . Generally speaking, the larger the material that enters the earth’s atmosphere, the brighter the meteor. Brighter meteors will occasionally leave a smoke trail behind in their path lasting a few seconds; trails produced by very bright meteors, ... to as fireballs, may last minutes. Fireballs that appear to break up or produce sound are called bolides, from the Greek word bolis meaning missile.

Похожие

Тот же тест