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Current Affairs January 2024

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4

What is the term for the introduction of harmful substances or pollutants into the environment?

A. Pollution

B. Erosion

C. Leaching

D. Condensation

Correct Answer :

A. Pollution


Related Questions

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Which of the following is an example of a point source of water pollution?

A. Agricultural Runoff

B. Oil Spill from a Tanker

C. Acid Rain

D. Urban Stormwater Runoff

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4

What is the term for the layer of the atmosphere where weather events occur and most of Earth's weather phenomena take place?

A. Troposphere

B. Stratosphere

C. Mesosphere

D. Thermosphere

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4

Which of the following is a measure of the total amount of greenhouse gases emitted by a particular activity or entity?

A. Carbon Footprint

B. Eutrophication

C. Acidification

D. Deforestation

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4

Which of the following is a renewable source of energy?

A. Coal

B. Natural Gas

C. Solar Power

D. Nuclear Energy

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Which of the following is an example of a natural ecosystem service?

A. Water Treatment

B. Soil Erosion

C. Pollination of Plants

D. Air Pollution

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Which of the following is a non-renewable resource?

A. Wind Energy

B. Natural Gas

C. Solar Power

D. Biomass

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What is the main source of energy for photosynthesis?

A. Sunlight

B. Carbon Dioxide

C. Water

D. Oxygen

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Which of the following is a keystone species in a marine ecosystem?

A. Sea Star

B. Clownfish

C. Algae

D. Seagull

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Which gas is released during the process of photosynthesis?

A. Oxygen

B. Carbon Dioxide

C. Methane

D. Nitrous Oxide

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4

What is the term for the process by which a species evolves over time to better suit its environment?

A. Evolution

B. Adaptation

C. Speciation

D. Mutation

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4

What is the term for the gradual increase in the Earth's average temperature due to human activities?

A. Greenhouse Effect

B. Global Warming

C. Ozone Depletion

D. Acid Rain

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4

Which of the following is a primary source of indoor air pollution?

A. Outdoor Smog

B. Radon Gas

C. Ground-level Ozone

D. Acid Rain

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4

Which of the following is an example of point source pollution?

A. Agricultural Runoff

B. Oil Spill from a Ship

C. Atmospheric Deposition

D. Groundwater Contamination

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4

Which of the following is a non-renewable resource derived from the remains of ancient marine organisms?

A. Natural Gas

B. Wind Energy

C. Solar Power

D. Biomass

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4

What is the term for the process by which plants convert sunlight into chemical energy?

A. Photosynthesis

B. Respiration

C. Fermentation

D. Combustion

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4

Which of the following is a primary air pollutant?

A. Ground-level Ozone

B. Carbon Monoxide

C. Sulfur Dioxide

D. All of the above

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4

What is the term for the process by which a body of water becomes nutrient-rich and supports excessive plant growth?

A. Eutrophication

B. Acidification

C. Salinization

D. Leaching

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4

Which of the following is an example of a natural greenhouse gas?

A. Carbon Dioxide

B. Water Vapor

C. Methane

D. Ozone

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4

What is the primary cause of the depletion of the ozone layer?

A. Carbon Emissions

B. Deforestation

C. Chlorofluorocarbons (CFCs)

D. Sulfur Dioxide

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4

Which layer of the atmosphere is closest to the Earth's surface?

A. Troposphere

B. Stratosphere

C. Mesosphere

D. Thermosphere

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4

Which of the following is a method of conserving water in agriculture that involves watering plants at their roots rather than spraying them from above?

A. Drip Irrigation

B. Flood Irrigation

C. Center Pivot Irrigation

D. Furrow Irrigation

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4

What is the term for the variety of life forms, including different species, ecosystems, and genetic variations within a given area?

A. Biodiversity

B. Ecosystem Services

C. Ecological Footprint

D. Habitat Fragmentation

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4

What is the term for the process of removing salt and other minerals from seawater to make it suitable for drinking and irrigation?

A. Desalination

B. Filtration

C. Distillation

D. Purification

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4

Which of the following is an example of a primary consumer in an ecosystem?

A. Hawk

B. Rabbit

C. Grass

D. Snake

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What is the term for the process by which bacteria convert ammonia into nitrates and nitrites in the nitrogen cycle?

A. Denitrification

B. Nitrification

C. Ammonification

D. Nitrogen Fixation

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4

Which of the following is a characteristic of a sustainable ecosystem?

A. High biodiversity

B. Rapid resource depletion

C. Heavy pollution

D. Disruption of natural cycles

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4

What is the process of converting waste materials into reusable materials called?

A. Recycling

B. Incineration

C. Landfilling

D. Composting

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4

What is the term for the process by which soil particles are carried away by wind or water?

A. Leaching

B. Erosion

C. Evaporation

D. Condensation

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4

What is the main greenhouse gas emitted from agricultural activities?

A. Methane

B. Carbon Dioxide

C. Nitrous Oxide

D. Chlorofluorocarbons

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4

Which of the following is a method of renewable energy production that involves harnessing the kinetic energy of ocean tides and currents?

A. Tidal Energy

B. Geothermal Energy

C. Biomass Energy

D. Hydropower