Answer: gold, ivory, and iron
Explanation:
The correct answer is C. Ozone
Explanation:
Ozone is a type of gas formed by oxygen that can be found mainly in the stratosphere that is the layer found from around 8km to 60 km above the Earth's surface. Additionally, the ozone is the gas that absorbs ultraviolet radiation produced by the sun, also called UV radiation, this function of ozone is quite important because an excess in UV radiation causes burns in the living organism and leads to dagame in tissues. However, an excess of ozone can also lead to the greenhouse effect. According to this, it is ozone the component or gas that absorbs damaging ultraviolet radiation from the sun.
Answer:
Erosion
Explanation:
Building a house on a cliff is a very trick thing. The cliffs usually are not composed of hard rocks, but instead are usually composed of sedimentary rocks which are much softer and less stable on the long run. The cliffs are also exposed to heavy erosion, in the lower parts because of the waves, in the higher parts because of the winds. The erosion makes the cliffs slowly fall apart, and occasionally even crumble down, so a builder that would build a house on a cliff should be wary of all these things and construct the house where it is the safest for the long run.
