Answer:
Biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.
Explanation:
the number of trophic levels in a food web
B. capsids
C. cocci
D. endospores
Answer;
-These are positive impacts of dams to the society.
Explanation;
-Dams are important because they provide water for domestic, industry and irrigation purposes. Dams often also provide hydroelectric power production and river navigation.
-Other positive impacts include; dam wall itself blocks fish migrations, which in some cases and with some species completely separate spawning habitats from rearing habitats. It also traps sediments, which are critical for maintaining physical processes and habitats downstream of the dam.
1. You can build Earthquake resistant buildings- These are built with deep foundations. From rubber absorbers to concrete reinforced with steel.
2.Earthquake drill- They do this in Japan. and they basically practise what to do in the event of an actual earthquake happening
3. you can also be prepared. Have extra food and water.
Answer:
variation in skin color.
Explanation:
The human skin color is determined genetically depending on the amount of melanin. However pigmentation can occur as a results of exposure to uv rays that causes induced pigmentation.
The sun emits two types of ultra violet rays which can reach can reach the skin namely the uva and uvb. Both type of rays can damage the skin if unprotected. Due to this there was evolution against the damaging rays. More melanin that provides a natural sunscreen to the people leaving in the tropic environment.