Answer:
B. respiratory illness
Explanation:
Air pollution causes humans to breathe unhealthy air which can lead to respiratory illnesses.
Answer:
A) Plant Cells
Explanation
Cell walls are only found in plant cells and are used primarily to create structure, but cell membranes are found in all cells.The bulk of the membrane is composed of a double layer of lipids called the lipid bilayer. Inside the bilayer there is a layer of cholesterol to keep the membrane fluid.
<span>RNA is of three types, they are tRNA (transfer RNA), mRNA (messenger RNA) andrRNA (ribosomal RNA). Messenger RNA, as the name suggests acts a messenger. It carries genetic information sequences between DNA and ribosomes, and it also directs protein synthesis.
The answer is in bold.</span>
The five successive stages of coal
formation are as follows:
step 1: plants decay
step 2: peat is formed
step 3: peat changes to lignite (soft
brown coal made from peat)
step 4: bituminous coal is formed
(black and brittle and very polluting)
<span>step 5: anthracite coal is formed
(highest amount of carbon and clean burning)</span>
