Answer:
Here, took me some time ;)
Explanation:
The sentence which is true or a fact about the virus is the sentence in letter B. Viruses can reproduce only within other cells. <span>Viruses are intracellular obligate parasites they can not replicate or express the genes with out living host. </span>
<span>viruses are acellular so they have to rely on host cellular machinery for reproduction. </span>
<span>viruses doesnot contain any enzymes for reproduction</span>
Nutrients Pollution
Surface Water Pollution
Oxygen Pollution
Answer:
Scientist 1
Explanation:
<em>The conclusion of scientists 1 is valid.</em>
Human activities such as burning of fossil fuels, agriculture, deforestation, etc. leads to the emission of carbon in the form of carbon dioxide into the atmosphere. <em>An increase in the population of a city will only lead to an increase in these activities and hence, an increase in the amount of carbon emitted into the atmosphere.</em>
Also, volcanic activities leads to the production of volcanic gases which is a mixture of carbon dioxide, oxides of sulfur, nitrogen, etc.
<u>However, an active volcano that is several miles away from the city might not be a major source of carbon in the air above a large city. The carbon dioxide produced from such volcanic activity thins out before reaching the city.</u>
Answer:
Water is required for germination. Mature seeds are often extremely dry and need to take in significant amounts of...
Oxygen is required by the germinating seed for metabolism. Oxygen is used in aerobic respiration, the main source of the...
Temperature affects cellular metabolic and growth rates. Seeds from different species and even seeds from the same plant.
Explanation:
