Answer:
Mast Cells
Explanation:
Mast cells release histamine in the blood stream, when they detect a substance that triggers an allergic reaction, also called an allergen.
Answer:
168 toads
Explanation:
First we need to find the area of the garden. Area = length x width
Area = 12m x 7m = 84 m²
2 toads/ 1 sq m
84(2) = 168
Tsunami is <span>a large wave usually caused by an undersea earthquake.
Explanation
</span>Tsunamis are big<span> waves caused by earthquakes or volcanic eruptions </span>beneath the ocean<span>. </span>go in<span> the depths of the ocean, </span>moving ridge<span> waves </span>don't<span> dramatically increase </span>tall<span>.
H</span>owever because the<span> waves travel </span>inland,<span> they build up to higher </span>and higher<span> heights </span>because the<span> depth of the ocean decreases.
The speed of </span>moving ridge<span> waves depends on ocean depth </span>instead of the space<span> from the </span>supply<span> of the wave. </span>moving ridge<span> waves </span>might<span> travel as </span>quick<span> as jet planes over deep waters, </span>solely deceleration<span> down </span>once reaching<span> shallow water.</span>
Answer:
Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants.
