The correct sequence of engine operation is given by option C. intake, power, compression and exhaust. The first step is the intake of air, in the case of petrol engines, fuel is taken in as well. The second step is compression. The third step is combustion or power, in this part, the fuel is injected. The last step is exhaustion which refers to the blowing out of the waste gases from combustion.
Photosynthesis removes CO2 from the atmosphere and replaces it with oxygen.
Explanation:
Photosynthesis removes CO2 from the atmosphere and replaces it with oxygen. By respiration, O2 is removed from the atmosphere and replaced with CO2. However, these processes are not balanced. Some organic matter is not oxidized. (I'm very sorry if I'm wrong but I believe it's that)
<span>Pesticide use is harmful to human agriculture because it
contains an antifreezing chemical (present in transportation vehicles). When
the chemical seeps into the leaves of the plant, it is distributed all over its
body and remains there. The chemical may still be present there when we are
going to the plant.</span>
It is false that Qualitative research generally uses numbers to represent research data. Qualitative research is more on descriptions and meanings.Quantitative research is the word for this description.
