Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

Which is not a component of human socio-cultural environment?

  1. Land

  2. Religion

  3. Community

  4. Caste
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Land cannot be directly a component of human socio-cultural environment as compared to religion, community and caste which determines  beliefs, social grouping etc. Land also becomes a tangible component as compared to others that are intangible. Land or property provides the economic status, whereas religion, community and caste gives an idea of the social and cultural inclination of the person.
So, the correct answer is 'Land'
Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

Metallic pollutants released by automobiles that use leaded fuel is

  1. Arsenic

  2. Cadmium

  3. Lead

  4. Mercury
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Leaded fuel in the form of lead gasoline is banned recently due to its extremely harmful effects on health and pollution caused by it. Combustion of leaded petrol leads to release of lead in the environment causing dangerous effects on the health of all living organisms and environmental pollution. 

The main difference between leaded and unleaded petrol is the presence of an additive in leaded petrol called tetra ethyl lead.
So the correct option is C.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

Tsai Lun is famous for inventing

  1. Paper

  2. Use of tannins

  3. Rubber

  4. Silk
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tsai Lun, a Chinese court official, is traditionally credited with the invention of paper during the Han Dynasty. He improved the papermaking process using mulberry bark and other fibers.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

In humans, nitrates causes blood disease and

  1. Gastric cancer

  2. Bladder infection

  3. Skin infection

  4. Lung disease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nitrates in drinking water can be converted to nitrites in the body, which interfere with the blood's ability to carry oxygen. Long-term exposure to high levels of nitrates is also associated with an increased risk of gastric cancer.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

The largest store of carbon molecules on earth is in

  1. The atmosphere

  2. Fossil fuels

  3. Marine sediments

  4. Living organisms
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When marine organisms die, their bodies sink into the sediments at the bottom of the ocean. The carbon from their bodies is released which forms marine sediments that arc the largest store of carbon on earth.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

An ideal shelter for housing a temperature-measurement instrument should be:

  1. White

  2. Black

  3. In the shade

  4. Both white and in the shade
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To measure air temperature accurately, instruments must be protected from direct sunlight and heat radiation. A white surface reflects solar radiation, and placement in the shade prevents direct heating.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

What is auxiliary energy in man subsidized solar powered ecosystem?

  1. Man and Machine

  2. wind and Rain

  3. Organic matter

  4. Nutrient cycle
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In a man-subsidized solar-powered ecosystem, human labor and machinery provide the auxiliary energy needed to increase productivity beyond what natural solar energy alone could support.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

Public awareness of environment creates _____________

  1. Environment protection

  2. Environment degradation

  3. Environmental improvement

  4. Environmental cultivation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Public awareness programs educate citizens about environmental issues, which encourages responsible behavior and advocacy for policies that lead to environmental protection.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

Vulcanisation of Rubber is carried out to make it

  1. Soft

  2. Elastic

  3. Resistant to temperature changes

  4. Hard and inelastic
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vulcanization is a chemical process that adds sulfur to rubber, creating cross-links between polymer chains. This makes the rubber more durable and resistant to temperature fluctuations.