Environment (UPSC)
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Q. A carbon offset program costs $20 per ton of CO2. If a company needs to offset 500 tons, how much will it cost?
Q. A certain ecosystem has a carrying capacity of 1,000 deer. If the current population is 800, what percentage of the carrying capacity is currently being utilized?
Q. A certain ecosystem has a carrying capacity of 500 rabbits. If the current population is 300 rabbits, what percentage of the carrying capacity is currently being utilized?
Q. A certain ecosystem has a total of 500 species. If 15% are mammals, how many mammal species are there?
Q. A certain species of fish can reproduce every 3 months. If a single fish reproduces 20 offspring each time, how many fish will there be after 1 year assuming all offspring survive?
Q. A city has a population of 1 million people and each person contributes 4 tons of CO2 annually. What is the total CO2 contribution of the city in a year?
Q. A city plans to reduce its water consumption by 15% from its current usage of 2 million liters per day. What will be the new daily water consumption?
Q. A conservation area has 80 species of birds. If 10% are migratory, how many migratory bird species are there?
Q. A conservation area is designed to protect 150 species of plants. If 10% of these species are endangered, how many species are endangered?
Q. A conservation project costs $1.5 million and is expected to increase biodiversity by 25%. If the current biodiversity index is 40, what will be the new index?
Q. A country aims to plant 1 million trees in 5 years. If they plant 200,000 trees in the first year, how many trees do they need to plant in the next 4 years to meet their goal?
Q. A country aims to reduce its carbon emissions by 25% over the next 5 years. If the current emissions are 200 million tons, what will be the target emissions after 5 years?
Q. A forest area of 1000 hectares absorbs 2.5 tons of CO2 per hectare per year. How much CO2 does it absorb in total in a year?
Q. A lake has a volume of 1,200,000 cubic meters. If the evaporation rate is 5% per month, how much water evaporates in one month?
Q. A national park has 300 species of mammals. If 10% are large mammals, how many large mammals are there?
Q. A renewable energy project costs $2 million and is expected to save $300,000 annually. What is the payback period in years?
Q. A renewable energy project costs $500,000 and is expected to save $100,000 annually in energy costs. How many years will it take to break even?
Q. A research team found that 50% of a certain habitat's species are insects. If there are 400 species total, how many are insects?
Q. A river's flow rate is measured at 500 cubic meters per second. How much water flows through the river in one hour?
Q. A wetland ecosystem has a water retention capacity of 2000 liters. If it currently holds 1200 liters, what percentage of its capacity is filled?
Q. If a carbon footprint of a household is reduced by 15% each year, what will be the footprint after 2 years if the initial footprint is 2000 kg?
Q. If a certain pollutant decreases in concentration by 25% each year, what will be the concentration after 2 years if the initial concentration is 160 mg/L?
Q. If a certain species of bird migrates 1,200 kilometers in 3 weeks, what is the average distance it migrates per week?
Q. If a city has a population of 1 million and each person generates 0.5 kg of waste per day, how much waste is generated by the city in a week?
Q. If a country has a forest cover of 30% and plans to increase it to 40%, what percentage increase in forest cover is this?
Q. If a country reduces its carbon emissions by 20% and its original emissions were 500 million tons, what will be the new emissions level?
Q. If a desert ecosystem receives an average of 250 mm of rainfall per year, how much rainfall does it receive over 5 years?
Q. If a forest covers 60% of a region and the area of the region is 500 square kilometers, what is the area covered by the forest?
Q. If a forest has 120 species of trees and 30% of them are endemic, how many endemic species are there?
Q. If a grassland ecosystem covers an area of 1500 hectares and 1 hectare can support 20 sheep, how many sheep can the entire ecosystem support?