Question

Answer the following questions:

a) Mention two causes of deforestation.

b) Define reproduction
c) Name the hormones secreted by the given glands:

i)Thyroid gland ii)Adrenal gland

iii)Testes iv)Ovary

d) Define global warming. Write the effects of global warming.​

Answer 1

A) Cutting of woods, infrastructure expansion.

B) Reproduction is the process of producing young ones of the same kind.

C)i) thyroid ii) adrenaline iii) sperms iv) eggs.

D) Global warming is the long term heating of earth's climate system. Ecosystems: Global warming stresses ecosystems through temperature rises, water shortages, increased fire threats, drought, weed and pest invasions, intense storm damage and salt invasion, just to name a few. Some of Australia's great natural icons, such as the Great Barrier Reef, are already threatened.

Answer 2

Answer:

a)

i) it leads to global warming

ii) it lead to extinct of animals

b) the process by which new organism is produced by the parent it's called reproduction

c)

i) thyroxine Hormone

ii) adrenaline Hormone

iii) testosterone

iv) estrogen, progesterone

d)

the trapping of greenhouse gases like carbon dioxide Sulphur Dioxide which increase in the temperature of earth atmosphere called global warming.

its effect =

i) it leads to ozone depletion.

ii) it increase earth temperature