The greatest effect of acid rain is on the ______ of the plants.

The greatest effect of acid rain is on the ______ of the plants.

a. leaves
b. plant stems
c. roots
d. plant reproductive systems
e. tree bark

Answer: C

The main components of acid rain are:

The main components of acid rain are:

a. carbonic acid and sulphuric acid
b. nitric acid and carbonic acid
c. nitric acid and sulphuric acid
d. sulphuric acid and acetic acid
e. sulphuric acid and carbonic acid

Answer: C

Ozone is harmful at:

Ozone is harmful at:

a. stratospheric levels in the atmosphere
b. sub-stratospheric levels in the atmosphere
c. upper levels in the atmosphere
d. all levels in the atmosphere
e. lower levels in the atmosphere

Answer: E

A gaseous pollutant that contributes to acid rain is:

A gaseous pollutant that contributes to acid rain is:

a. mercaptan
b. carbon dioxide
c. methane
d. nitrous oxides
e. ozone

Answer: D

Regenerable systems used for flue gas desulphurization:

Regenerable systems used for flue gas desulphurization:

a. are less expensive than non-regenerable methods
b. use lime or limestone in scrubbing the flue gas
c. produce a marketable by-product
d. are better developed and more widely applied than non-regenerable systems
e. produces no marketable by-product

Answer: C

Hydrogen as an alternative fuel is considered ideal because:

Hydrogen as an alternative fuel is considered ideal because:

a. it burns at low temperatures therefore minimizing nitrogen oxide formation
b. it has nearly the same heating value as carbon
c. it is safe and easy to store
d. water vapour is the only product combustion
e. the cost of production is minimal

Answer: D

The greenhouse gases allow:

The greenhouse gases allow:

a. high energy waves to pass
b. low energy waves to pass
c. long energy waves to pass
d. short every waves to pass
e. allow all energy levels to pass

Answer: A

The upper level gas that shields the earth from ultraviolet radiation is:

The upper level gas that shields the earth from ultraviolet radiation is:

a. ozone
b. methane
c. carbon dioxide
d. chlorofluorocarbons
e. nitrogen

Answer: A

Carbon dioxides is responsible for:

Carbon dioxides is responsible for:

a. 20% of greenhouse gases
b. 30% of greenhouse gases
c. 40% of greenhouse gases
d. 50% of greenhouse gases
e. 60% of greenhouse gases

Answer: D

Nitrogen oxides are referred collectively as:

Nitrogen oxides are referred collectively as:

a. NOs
b. NO2
c. N2O
d. NOx
e. N2O5

Answer: D

In order for acid rain to be formed:

In order for acid rain to be formed:

a. atmospheric temperatures must be correct
b. water vapour must be present
c. sunlight must be present
d. water vapour and cool temperatures must apply
e. water vapour and sunlight must be present

Answer: E

To reduce nitrogen oxides in the flue gas, the dual register burner:

To reduce nitrogen oxides in the flue gas, the dual register burner:

a. reduces turbulence to delay combustion hence reducing temperatures
b. completes combustion in the burner tube before the furnace area
c. supplies cooling air to reduce furnace temperature
d. increases turbulence for most efficient combustion
e. uses maximum excess air for combustion at high temperatures

Answer: A

Incomplete combustion of fuel is responsible for the production of:

Incomplete combustion of fuel is responsible for the production of:

a. water vapour
b. carbon dioxide
c. hydrogen sulphide
d. sulphur dioxide
e. carbon monoxide

Answer: E

The conversion of nitrogen to nitrogen oxides occurs at temperatures above:

The conversion of nitrogen to nitrogen oxides occurs at temperatures above:

a. 1,259 C
b. 1,450 C
c. 1,650 C
d. 1,850 C
e. 2,250 C

Answer: C