I think the correct answers are options C and D. Examples of science are a farmer consulting a weather almanac to decide the best time to plant a crop and a<span> drug manufacturer testing a drug to determine its safety. These things require the knowledge on science and its related subjects.</span>
The correct answer for question number 1 is A - eukaryotes are the name
for unicellular organisms that dominated earth up to the Precambrian
times.
The correct answer for question number 2 is C - the
greenhouse effect is related to the phenomenon of an increase in average
surface temperature known as global warming.
The correct
answer for question number 3 is D - the colourless and odourless gas
that is produced by the radioactive decay of Uranium-238 and is considered
to be a cancer-causing agent is Radon.
The correct answer for
question number 4 is B - Scientists can determine if oxygen existed in
Earth's Archean atmosphere by looking for oxidized iron in rocks.
Answer:1. A unit of mass equal to the mass of 1 cubic centimeter of water at 4° C.
2. Prefix meaning one-hundredth (.01).
3. A measure equal to one-hundredth of a meter.
4. A measure equal to one thousand grams.
5. Unit of measure equal to one-tenth of a meter.
6. The basic measure of volume in the metric system.
7. A system of numeration that is based on units of ten.
8. Prefix meaning one thousand (1,000).
9. A measure equal to one thousand meters.
10. An amount of surface.
Explanation:
The correct answer is option B
Carbon dioxide is present in the environment along with the other gases and still it is considered as a pollutant when its concentration in the atmosphere increases than the normal concentrations.
The normal concentration of the carbon dioxide is maintained by the help of plants that use carbon dioxide for the process of photosynthesis.
The increased amount of carbon dioxide in the atmosphere is caused due to the human activity.
Industrial release, pollution from automobiles are some of the sources of carbon dioxide emission.
