Answer: A is mars , B is earth
Explanation:
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Adaptations generally occur in order to increase the fitness and thus survival of organisms. ... shown that may not be sufficient to accurately predict the effects of climate change on a species.
The statement 'Exploring the relationship between the material in a rock sample and its hardness' correctly describes an experimental investigation (Option C).
<h3>What is an experimental investigation?</h3>
An experimental investigation is defined as a procedure used in the scientific method to test an explanation or hypothesis, which can be confirmed or rejected.
In conclusion, the statement 'Exploring the relationship between the material in a rock sample and its hardness' correctly describes an experimental investigation (Option C).
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Consequently plant roots will get more moisture with less effort. It also improves soil structure due to alternate drying and cooling and soil aeration which helps in multiplication of micro-organisms. This is the reason that farmers plough their field during summer.
Hope this helps!
~ Kana ^^
Answer:
In the element (<u>n Na20)</u> the <em>2 </em>means that there are 2 oxygen atoms in the Sodium Oxide.
