Answer:
D
Explanation:
There are many food chains within a food web, so D seems like the best possible answer :)
Answer:
A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem.
Explanation:
Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web.
Answer:
In uranium-lead dating, for instance, the radioactive decay of uranium into lead proceeds at a reliable rate. Based on the very old zircon rock from Australia we know that the Earth is at least 4.374 billion years old.
And that's how after rounding we know that earth is 4.5 years old.
Answer:
magma upwelling and lateral expansion along the mid-Atlantic ridge
Explanation:
Waste from fish-feed and faeces can pollute the water and seabed around intensive fish farms leading to poor water and sediment quality