Miscellaneous-Mixed Worksheet-9

Miscellaneous Worksheet-9

1. Which group is the noble gases?

(a) 19                  (b) 18                  (c) 17                   (d) 16

2. Which of the following gases are responsible for creating acid rain?

(a) carbon monoxide

(b) sulphur dioxide

(c) nitrogen oxides

3. _____ is the process of change in state from a liquid to a solid.

(a) Melting        (b) Boiling         (c) freezing

4. An organism that has one dominant and one recessive allele for height is

(a) Overt                                         (b) Comparison

(c) Heterozygous                          (d) genome

5. A(n) ______ is a form of a gene.

(a) Allele            (b) Ovule           (c) Purebreed   (d) sequence

6. Which direction do periods go on the periodic table?

(a) up and down                           (b) across the table

(c) from the corners                    (d) down

7. A trait that is controlled by more than two alleles is called:

(a) DNA sequencing                    (b) multiple phenotypes

(c) hereditary sequencing          (d) polygenic inheritance

8. Where do most storm drains empty into?

(a) nearby lakes and streams

(b) sewer plant

(c) recycling center

9. What items should be disposed off in a storm drain?

(a) used motor oil

(b) chemicals used on your lawn

(c) rain and water

10. Choose all the 4 main layers of the atmosphere

(a) Mesosphere                             (b) Thermosphere

(c) Ionosphere                               (d) Stratosphere

(e) Troposphere

Answer Key:

1. (b)
2. (c)
3. (c)
4. (c)
5. (a)
6. (b)
7. (d)
8. (a)
9. (c)
10. (a,b,d,e)