Question

NOTEMAKING There are a variety of causes that can contribute directly or indirectly to the extinction of a species or group of species. Just as each species is unique, and so is each extinction. The causes for each are varied some subtle and complex, others obvious and simple. Most simply, any species that is unable to or reproduce in its environment, and unable to move to a new environment where it can do so, will out and become extinct. Extinction of a species may come suddenly when a healthy species is wiped out completely, as when toxic pollution makes its entire. unlivable; or may occur gradually over thousands or millions of years, such as when a species gradually loses out in for food to better adapted competitors. The question of whether more extinction in the fossil record have been caused by evolution or by catastrophe is a subject of discussion. When talking about species extinction has been raised, most expert concern with the of climate change and technological disasters. Currently, environmental groups and some governments are concerned the extinction of species caused by human beings, and are attempting to combat further extinctions through a variety of conservation programs. Humans can cause extinction of a species through overharvesting, habitat destruction, introduction of new predators and food competitors, overhunting, and other influences.​

Answer 1

Answer:

Construct a ∆PQR in which QR = 5.5cm, ∟Q = 600

and PR – PQ = 1.4cm.

29. In an isosceles ∆ABC, with AB = AC

Explanation:

thanks for pointing s