Question

Read the following four (A-D)statements.
A)Cranial capacity of Homo-habilis was 650-800c.c.
B)Cranial capacity of Homo erectus was about 900c.c.
C)Around two mya Australopithecus probably lived in East African grasslands
D) During ice age ,Homosapiens arose

How many of the given statements are not correct?
A.Four
B.Three
C.Two
D.None of the above

Answer 1

Hint: Cranial capacity is the measure of volume of interior of the skull of vertebrates. It is measured in cubic centimetre ($cm^3$).

Complete answer:
Cranial capacity of Homohabilis was 650-800c.c.Homo habilis was the first homo category in human evolution next to Australopithecus.They have increased cranial capacity of 650-800c.c.Compare to Austrolopithecus they developed skill to make weapons from stones and bone pieces
 Cranial capacity of Homo erectus was about 900c.c.Homo erectus coming next to homo habilis in the human evolutionary tree shows an increase in cranial capacity compared to its predecessor.That means they have more developed brain and its capacity is about 900c.c.
Around two mya australopithecus probably lived in east African grasslands .Austrolopithecus who was the first ancestor of man they evolved from Dryopithecus or Ramapithecus.Dryopithecus or Ramapithecus are more like monkey than man .so they lived in forests and grasslands .So Austrolopithecus evolved from these follow their habitats for two mya and lived in eastern African grasslands where their ancestors lived.
During the ice age Homo sapiens arose. Homo sapiens or modern man arose after a Neanderthal man who lived 40000 years back. Ice age starts from 18000 years ago,in which the temperature of the earth is reduced. During the beginning of this period Neanderthals existed. 4000 years later home sapiens came into existence and they were called children of the ice age. They are supposed to have survived this era by restricting them into a small patch of land called “garden of eden”
Option A) All four of the statements are correct. So this is an incorrect option
OptionB) All four of the statements are correct. So this is an incorrect option
Option c) All four of the statements are correct. So this is an incorrect option
Option D) All four of the statements are correct. So this is the correct option

Hence, the correct answer is option (D)

Note: Ice age happened after the extinction of dinosaurs.Development of homo sapiens in the ice age took place significantly after the megafauna like the mammoths went extinct. The cranial capacity of homo sapiens or the modern man is around 1350 cubic centimetres.