Question

2 ★ Fill in: breathe, observing, repeat, separate,
struggle.
1
For this study, the psychologist will .........
the girls from the boys.
Although I ........
2
in chemistry.
3 The air we
............... in physics, I do very well
is actually 78% nitrogen
and only 21% oxygen.
...... their experiments
again and again to make sure the results are
valid.
4 Scientists have to
5 Biologists have to be patient while they're
.... animals in the wild.

Answer 1

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Пояснення:

1. For this study, the psychologist will **separate** the girls from the boys. Although I **struggle**.

2. **Breathe** in chemistry.

3. The air we **observe** in physics, I do very well. It is actually 78% nitrogen and only 21% oxygen. **Repeat** their experiments again and again to make sure the results are valid.

4. Scientists have to **repeat**.

5. Biologists have to be patient while they're **observing** animals in the wild.