Answer:
Global warming is a change in the earth's climate which makes it heat up. While the greenhouse effect is a natural process that always is happening because of sunlight and the atmosphere.
I hope this is easy enough.
<span>They are composed of similar materials DNA is a deoxyribonucleotide polymer while RNA is a ribonucleotide polymer. A nucleotide is composed of a nitrogenous base, a sugar, and a phosphate group. In ribonucleotides, the sugar is ribose, while in deoxynucleotides, the sugar is deoxyribose. Adenine, guanine, and cytosine are nitrogenous bases in both DNA and RNA, while thymine is found only in DNA and uracil is found only in RNA.</span>
A pair of matching chromosomes in an organism is known as homologous chromosome.
Its more logical to say a leaf tissue because of the presence of several tissues inside it which are performing their designated functions.
<h3><u>Explanation:</u></h3>
If we look at the cross section of a leaf, the leaf tissue looks having several tissues. There are vascular bundles in the midrib that are xylem and phloem. Then there are leaf parenchyma which contains the chloroplasts.
They are palisade parenchyma on upper layer and spongy parenchyma. Then there are leaf epidermis on both upper and lower surfaces of leaf. So because of the presence of different tissues, they are collectively called as leaf tissue.