Fossils provide a window in Earth's history by showing us how they existed in the past. They can be dated through several ways and can show us how animals and plants have evolved over millions of years. Also, fossils can help us better understand ancient disasters by the inclusion of elements (such as <span>volcanic ash or dust from major space object impacts) and how they affected the life on earth)</span>
Formed when a sunlight heated the water in small streams b. rocks
<span>Biological specimens have been preserved in alcohol and formalin for many years.This could damage the specimen and change the colour of the fluid.Engineered fluids are now used as a substitute for formalin as it is a more sustainable medium..Novec fluids which are low in toxicity are also used.</span>
Answer is: carbon atoms can be arranged s<span>traight chain, branched chain and ring.
</span>Hydrocarbon<span> is an </span>organic compound<span> consisting of </span>hydrogen<span> and </span><span>carbon.
</span><span>In s</span>traight chain<span> carbon atoms are bonded with only two other carbon atoms in elongate chain.
</span>In branched chain at least one carbon is bonded with more than two other carbon atoms.
Ring chain hydrocarbons are <span>cyclic </span><span>hydrocarbons</span>.
Answer:
true
as temperatures rise, the atoms become more active; as per the opposite (meaning as temperatures drop, the atoms start to settle down) liquid is the more medium state (because the temperature rises enough for the solid to become a a liquid but not too much that the liquid evaporates and turns into a gas) have a great day/night
