| 1 |
Lack of _____ retards the rate of photosynthesis in plants.
|
flowers <br>
oxygen <br>
water <br>
seeds <br>
|
| 2 |
Many plants join up to from forests and forest help us in may ways, Pick out the major use(s) of forests form the following.
|
They provide food<br>
They provide wood <br>
Both of these <br>
Neither of these<br>
|
| 3 |
The process by which green plats prepare their own food is called__.
|
Transpiration <br>
all of these <br>
photosynthesis <br>
guttation <br>
|
| 4 |
What is the outermost boundary plants?
|
Cell membrane <br>
Cytoplasm <br>
Nucleus <br>
Cell wall <br>
|
| 5 |
What makes the green color of plants?
|
Chloroplast <br>
Chlorophyll <br>
Plasmids <br>
None of these <br>
|
| 6 |
Plants are called the ____ of nature,
|
Stomach <br>
liver <br>
heart <br>
lungs <br>
|
| 7 |
The most abundant constituent of atmospheric air is?
|
Carbon <br>
hydrogen <br>
Oxygen <br>
Nitrogen <br>
|
| 8 |
What color is sulfuric acid?
|
Pale yellow <br>
Light blue <br>
Colorless <br>
It depends on the temperature<br>
|
| 9 |
What is the atomic number of zinc?
|
29
28
31
30
|
| 10 |
What is 'seal level'?
|
The average altitude of the earth<br>
The approximate level of the surface of the sea <br>
The approximate level of the bottom of the sea <br>
How high the sea comes at high tide<br>
|
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