Question

Question 234 pts

Which is/are NOT characteristic(s) of invasive/noxious species:

Group of answer choices

Narrow environmental tolerance

Specialized pollination

Lack of natural controls

A and B

A and B and C

Question 244 pts

Burning fossil hydrocarbons releases nitrous oxide (N2O) into the air. Name two reasons this is a problem.

Group of answer choices

N2O is a greenhouse trapping gas

N2O is toxic to aerobic cellular respiration

N2O contributes to the destruction of ozone

A and C

B and C

Question 254 pts

Which of the following 'green house' gases has NOT increased in the last 50 years?

Group of answer choices

Nitrous Oxide

CFCs

CO2

Methane

All of the above have increased.

Answer 1

Q 234. Invasive species are usually plants / organism/bacteria that spread into an ecological system and cause harm to the indigenous species by disruption their population. Some characteristic make them successful in invasion as as follows

• habitat generalist.
• fast growing.
• opportunistic
• high viable seed
• lack of natural control
• tolerance to wide variety of environmental situations. Etc.

So the answer is option B

Q 244. Burning fossil hydrocarbon releases nitrous oxide into the environment. It is an green house gas that helps to trap heat and contribute global warming. Also nitrous oxide in high concentration makes the oxygen used by lungs rapidly and develops an anoxia Condition that fail to deliver oxygen to the tissue, that leads to trouble in cellular respiration. So the answer is option A and B.

Q 254. With rapid industrialisation , deforestation changing climate, green ouse gasses as increasing in last 50 years . fossil fuel burning increases Nitrous oxide, carbon dioxide etc. Melting of glaciers leads to release of methane gas and also release of CFC into environment by using different equipment to air also causing global warming.So the answer is option E.