Explanation:
Tests for gases
Hydrogen, oxygen, carbon dioxide, ammonia and chlorine can be identified using different tests.
Hydrogen. A lighted wooden splint makes a popping sound in a test tube of hydrogen.
Oxygen. A glowing wooden splint relights in a test tube of oxygen.
When you breath oxygen enters your body and gets transported to your blood cells
Answer: The correct answer would be gene pool.
Explanation:
Gene pool refers to the sum of all the alleles in an individual.
The allele refers to the alternate forms of the gene.
Large population usually has more genetic diversity as compared to small population. Variation in gene pool is essential for survival of a population.
<span> The quantity of stomata compared between plants in tropical environments and plants in hot, arid climates is
</span> Plants in hot, arid climates would have fewer stomata because they would need to prevent undesirable water loss from the plant leaves.
because in tropical it has more stomata
so correct option i conclude is B
hope it helps