Q.1
Minamata disease was caused by pollution of water by
Q.2
What is "temporary threshold shift"?
Q.3
World wildlife week is observed during
Q.4
The concept that 'population tends to increase geometrically while food supply increases arithmetically' was put forward by
Q.5
The lower limit of water availability in soil is known as
Q.6
The top layer of the lake is called as
Q.7
The most harmful of ultraviolet radiation is
Q.8
When the air is saturated, which of the following statements is not correct?
Q.9
Many freshwater animals cannot live for long in sea water and vice versa mainly because of the
Q.10
Which of the following enhances soil fertility?
Q.11
What is UNCED?
Q.12
_________ causes loss of water because of seepage of water into the soil.
Q.13
Frost typically forms on the inside of a windowpane (rather than the outside) because:
Q.14
Ecology is
Q.15
Which of the following is false?
Q.16
_________ layer is very near to earth
Q.17
In an average year, more people die from this than from any other natural disaster.
Q.18
About ____ of the meteorologists and atmospheric scientists in the United States work in the field of weather forecasting.
Q.19
The atmospheric layer in which we live is called the:
Q.20
The hottest atmospheric layer is the:
Q.21
Suppose yesterday morning you noticed ice crystals (frost) on the grass, yet the minimum temperature reported in the newspaper was only 35o F. The most likely reason for this apparent discrepancy is that:
Q.22
Definition of ecosystem is
Q.23
Which of the following statements is not correct?
Q.24
Harnessing of nuclear energy often causes ________ pollution
Q.25
The heating of earth's atmosphere due to trapped radiation is known as
Q.26
If the amount of energy lost by the earth to space each year were not approximately equal to that received:
Q.27
The sun emits its greatest intensity of radiation in:
Q.28
Valuable, practical services that help to preserve ecosystem performed by nature are called
Q.29
Our seasons are caused by:
Q.30
A biomass pyramid is important because it illustrates
Q.31
Low clouds retard surface cooling at night better than clear skies because:
Q.32
Approximately, 50% of total world species are present on
Q.33
Which one of the following ecosystem type has the highest annual net primary productivity?
Q.34
Which of the following regarding ecological pyramids is not correct?
Q.35
Which of the following statement is incorrect regarding ecological pyramids
Q.36
Without the atmospheric greenhouse effect, the average surface temperature would be:
Q.37
How much radiant energy will an object emit if its temperature is at absolute zero?
Q.38
Aquatic life is damaged by
Q.39
Lines connecting points of equal temperature are called:
Q.40
The main reason why vegetables take longer to cook in boiling water at high altitudes is because:
Q.41
If a glass of water were surrounded by saturated air:
Q.42
In the food relationship where the lion eats the wild beast, and the wild beast eats plants
Q.43
The main reason(s) for warm summers in northern middle latitudes is that:
Q.44
During an equinox:
Q.45
Meteorology is the study of:
Q.46
The amount of force exerted over an area of surface is called:
Q.47
Sedimentation is a
Q.48
Ecological niche of an organism represents
Q.49
Concept of ecological pyramids was proposed by
Q.50
Oil derived from coal, oil shales or tar sands is called
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