<span>Biodiesel is defined as mono-alkyl esters of long chain fatty acids derived from vegetable oils
or animal fats which conform to ASTM D6751 specifications for use in
diesel engines. Biodiesel refers to the pure fuel before blending with
diesel fuel.
i hope this helps you in the time of your need!! =D
</span>
The following five limiting factors would control the
population density of weeds;
<span>1.
</span>Supply and nutrients in the soil
<span>2.
</span>Presence/Absence of growth-restricting
substances such as pesticides
<span>3.
</span>The soil aeration and soil structure
<span>4.
</span>Moisture content in the soil.
<span>5.
</span>Biotic factors such as disease and pests
<span>6.
</span>Quality, intensity and duration of light
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Explanation:
A star of one solar mass remains in main sequence for about 10 billion years, until all of the hydrogen has fused to form helium.
Answer: B)The continents were once connected.
Explanation:
There was probably some kind of earth quake or drift in the plains/plates causing the land to break into pieces and separate
Answer:
Both are actually chemical changes but a candle burning is a better example of a chemical change
Explanation:
Hope it helps
