Biodiversity can change by mass distinction, natural disasters, hunting through humans and from their predators, Diseases, and etc.
For example, existance of dinosaurs have changed since they are extinct. That proves that biodiversity has changed since dinosaurs no longer exist.
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The chapter on biodiversity is typically found in the middle or towards the end of a life science textbook. The exact chapter number may vary depending on the specific textbook being used. It can typically be identified by its title or by looking at the table of contents of the textbook.
in a period size decreases from left to right and hence electrons are more tightly held to the nucleus. so electron gain enthalpy increases across a period . down the period size increases and thus in general electron gain enthalpy decreses .
The valency does not (or tends not to) vary going up and down a group. It varies going across a period.
It goes up by one left to right.
Your chemistry vocab is clearly wrong, incorrect and false. It is "electronegativity" not "electronegative" you should consider going back to primary school before attempting to pretend to know about the concept of "chemistry" Goodbye
How and why does farming vary across the uk
The chapter on biodiversity is typically found in the middle or towards the end of a life science textbook. The exact chapter number may vary depending on the specific textbook being used. It can typically be identified by its title or by looking at the table of contents of the textbook.
it does
Divergent Evolution, Convergent Evolution, and Coevolution
Across a period, the metallic character decreases.
The electro-negativity of elements increases as you move across a period.
The earth is a sphere
Describe how language and intellectual abilities vary between individuals and sub-groups across the spectrum
Costco does have merchandise available that is not in the stores . The price of products can vary from 100$ to 300$ and it can be across the places one wants to go to. The amount can vary for across country packages.
in a period size decreases from left to right and hence electrons are more tightly held to the nucleus. so electron gain enthalpy increases across a period . down the period size increases and thus in general electron gain enthalpy decreses .
Natural resources vary widely across the continent - Apex
Celebrating a wedding