LGS Mixed Practice Test #138

Question 1

Lake Michigan is located entirely within which country?‌​‍

Accepted Answer

USA only — Entirely in USA (unique Great Lake).‌​‍

Answer

US-Canada

Answer

Canada

Answer

Mexico

Question 2

Ayyankali's 'Villuvandi Samaram' (bullock-cart protest) in 1893 was aimed at establishing:

Accepted Answer

Right to travel on public roads for Dalits — Ayyankali rode a bullock cart on roads forbidden to Pulayas, asserting their right to use public roads.

Answer

Right to education

Answer

Temple entry

Answer

Voting rights

Question 3

Which of the following is the primary mineral nutrient responsible for the green color of leaves and a key component of chlorophyll?

Accepted Answer

B. Magnesium — Magnesium is the central atom in the chlorophyll molecule, making it essential for photosynthesis and leaf greenness. Iron is involved in chlorophyll synthesis but not as a structural component. Calcium and potassium have roles in cell wall structure and enzyme activation, respectively, but are not directly linked to chlorophyll's green pigment.

Answer

A. Iron

Answer

C. Calcium

Answer

D. Potassium

Question 4

CNS includes:

Accepted Answer

Brain + spinal cord — Central Nervous System.

Answer

Only brain

Answer

Only spine

Answer

Peripheral nerves

Question 5

Silk comes from cocoon of:‌​‍

Accepted Answer

Silkworm (Bombyx mori — mulberry silk) — Karnataka, AP, Tamil Nadu top producers. ‌​‍Non-mulberry: tasar, muga (Assam, golden silk), eri. Central Silk Board regulates.

Answer

Spider

Answer

Caterpillar only

Answer

Moth

Question 6

Vigilance and Anti-Corruption Bureau Kerala:

Accepted Answer

Statutory — State vigilance agency.

Answer

Political

Answer

Administrative

Answer

None

Question 7

Bone marrow function:‌​‍

Accepted Answer

Makes blood cells — Haematopoiesis.‌​‍

Answer

Makes hormones

Answer

Only support

Answer

Filter blood

Question 8

BRICS (original) members are:

Accepted Answer

Brazil, Russia, India, China, South Africa — BRIC term coined 2001 by Jim O'Neill (Goldman Sachs). BRIC became BRICS with South Africa's addition 2010. Expanded 2024 (UAE, Iran, Ethiopia, Egypt).

Answer

Brazil, Russia, India, China

Answer

UK, US, France, China, Russia

Answer

India, UK, USA, Germany

Question 9

Causative organism of chicken pox:‌​‍

Accepted Answer

Virus — Varicella-zoster virus (VZV) causes chicken pox.‌​‍

Answer

Protozoa

Answer

Bacteria

Answer

Fungus

Question 10

Why do we add salt to icy roads?‌​‍

Accepted Answer

Lowers freezing point of water — Salt lowers the freezing point of water (freezing point depression), causing ice to melt.‌​‍

Answer

Makes ice harder

Answer

Makes ice transparent

Answer

Absorbs heat

LGS Mixed Practice Test #138