Latest Science and Technology General Knowledge(GK) Questions and answers

1 .

Spring tides occur when ______.

A)

the sun is closest to earth

B)

the earth is at right angles with the sun and the moon

C)

the moon, the sun and the earth are in the same line

D)

the moon is farthest from earth

Correct Answer : the moon, the sun and the earth are in the same line

2 .

The process of pollination by birds is also known as

A)

Embryophily

B)

Hydrophily

C)

Entomophily

D)

Ornithophily

Correct Answer : Ornithophily

3 .

Which planet is considered as the Dwarf planet?

A)

Saturn

B)

Pluto

C)

Earth

D)

Jupiter

Correct Answer : Pluto

4 .

______ of species is a reflection of their evolutionary relationships.

A)

Characteristics

B)

Illustration

C)

Classification

D)

Adaptation

Correct Answer : Classification

Organisms are classified into various groups on the basis of similarities and dissimilarities they share amongst each other. The more characteristics two species have in common, more closely they are related to each other. ... Thus, classification of species is a reflection of their evolutionary relationship.

5 .

What is the meaning of an ECOTONE?

A)

An area with high biomass production

B)

An area with limited Flora and Fauna

C)

It's an area with low survival for species

D)

ECOTONE is where two biomes meet

Correct Answer : ECOTONE is where two biomes meet

An ecotone is a transition area between two biological communities, where two communities meet and integrate.

6 .

Bulb is a modification of which part of a plant?

A)

The stem

B)

The fruit

C)

The radicle

D)

The root

Correct Answer : The stem

Bulb, in botany, a modified stem that is the resting stage of certain seed plants, particularly perennial monocotyledons. A bulb consists of a relatively large, usually globe-shaped, underground bud with membraneous or fleshy overlapping leaves arising from a short stem.

7 .

What is the mean temperature of Earth?

A)

10Â°C

B)

14Â°C

C)

26Â°C

D)

34Â°C

Correct Answer : 14Â°C

(The global mean surface air temperature for that period was estimated to be 14°C (57°F), with an uncertainty of several tenths of a degree.) In other words, the maps show how much warmer or colder a region is compared to the norm for that region from 1951-1980.

8 .

Haustoria or sucking roots are found in which of the following?

A)

Mango

B)

Chestnut

C)

Wheat

D)

Cuscuta

Correct Answer : Cuscuta

9 .

Which instrument is used for measuring the altitude, direction and velocity of clouds

A)

Nephelumeter

B)

Pyrgeometer

C)

Nephoscope

D)

Venturimeter

Correct Answer : Nephoscope

10 .

Soap removes grease by

A)

Osmosis

B)

Emulsification

C)

Adsorption

D)

Coagulation

Correct Answer : Emulsification