LGS Mixed Practice Test #679

Question 1

The cell theory was proposed by:‌​‍

Accepted Answer

Schleiden and Schwann — Matthias Schleiden and Theodor Schwann (1838–39) proposed cell theory.‌​‍

Answer

Hooke and Leeuwenhoek

Answer

Watson and Crick

Answer

Darwin and Mendel

Question 2

A teacher wants to assess students' understanding of a historical event while also developing their critical thinking skills. Which literary form would BEST serve this dual purpose?

Accepted Answer

C. Debate script — A diary entry from a historical figure allows students to analyze perspectives, infer emotions, and evaluate the impact of events, fostering critical thinking. A biography provides a factual account but limits analysis, while debate scripts and poems prioritize argumentation or creativity over direct historical assessment.

Answer

A. Biography

Answer

B. Diary entry

Answer

D. Poem

Question 3

Digital India launched:‌​‍

Accepted Answer

2015 — Launched 1 July 2015.‌​‍

Answer

2017

Answer

2016

Answer

2014

Question 4

Goitre is caused by deficiency of:‌​‍

Accepted Answer

Iodine — Iodine deficiency impairs thyroxin production → enlarged thyroid (goitre).‌​‍

Answer

Iron

Answer

Calcium

Answer

Vitamin C

Question 5

A school counselor notices that a bright student, who consistently performs well academically, has recently become withdrawn, anxious, and expresses feelings of worthlessness despite good grades. According to Maslow's Hierarchy, which needs are most likely unmet for this student, impacting their well-being?

Accepted Answer

C. Esteem needs — Given the student's consistent academic performance, their physiological and safety needs are likely met. The feelings of worthlessness, anxiety, and withdrawal, despite academic success, strongly suggest unmet esteem needs. These needs involve feelings of accomplishment, recognition, respect from others, and self-respect. While self-actualization is the highest level, esteem needs directly precede it and are more directly related to the described emotional distress.

Answer

A. Physiological needs

Answer

B. Safety needs

Answer

D. Self-actualization needs

Question 6

A farmer in Kerala wants to shift from traditional paddy cultivation to a more profitable and sustainable model, considering the changing climate and market demands. Which of the following approaches would be most aligned with the objectives of promoting agricultural diversification and sustainability in Kerala?

Accepted Answer

C. Integrating aquaculture with paddy cultivation (Paddy-fish farming) and intercropping with short-duration vegetables. — Integrating aquaculture with paddy cultivation (Paddy-fish farming) and intercropping with short-duration vegetables represents a holistic approach to agricultural diversification and sustainability. This method enhances biodiversity, optimizes resource utilization, and provides multiple income streams, aligning with modern sustainable farming practices in Kerala. Options A, B, and D primarily suggest monoculture or less sustainable intensification, which do not fully address the need for diversification and environmental resilience.

Answer

A. Focusing solely on increasing the yield of existing paddy varieties through chemical fertilizers and pesticides.

Answer

B. Cultivating high-value spices like black pepper and cardamom as monocrops in large plantations.

Answer

D. Shifting entirely to rubber plantation as it offers stable long-term returns.

Question 7

World AIDS Day:‌​‍

Accepted Answer

1 Dec — 1 December.‌​‍

Answer

1 Nov

Answer

10 Dec

Answer

24 Oct

Question 8

Ultrasound used in:‌​‍

Accepted Answer

Sonography (medical scans) — Above 20,000 Hz. Also by bats/dolphins.‌​‍

Answer

Television

Answer

Radio

Answer

Phone calls

Question 9

Vembanad Lake Ramsar site:

Accepted Answer

Yes — Designated Ramsar wetland of international importance.

Answer

No

Answer

Pending

Answer

Rejected

Question 10

Which of the following is a primary characteristic observed in a patient experiencing a manic episode of Bipolar I disorder?

Accepted Answer

B. Decreased need for sleep — A significantly decreased need for sleep, often with no feeling of fatigue or impairment, is a hallmark symptom of a manic episode in bipolar disorder. Anhedonia, psychomotor retardation, and recurrent suicidal ideation are typically associated with depressive episodes, not mania.

Answer

A. Profound anhedonia

Answer

C. Psychomotor retardation

Answer

D. Recurrent suicidal ideation

LGS Mixed Practice Test #679