Consider the following:

1. Aerosols
2. Foam agents
3. Fire retardants
4. Lubricants

In the making of how many of the above are hydrofluorocarbons used?

Consider the following statements regarding the Indian squirrels:

1. They build nests by making burrows in the ground.
2. They store their food materials like nuts and seeds in the ground.
3. They are omnivorous.

How many of the above statements are correct?

Consider the following fauna:

1. Lion-tailed Macaque
2. Malabar Civet
3. Sambar Deer

How many of the above are generally nocturnal or most active after sunset?

Which one of the following makes a tool with a stick to scrape insects from a hole in a tree or a log of wood?

Consider the following heavy industries :

1. Fertilizer plants
2. Oil refineries
3. Steel plants

Green hydrogen is expected to play a significant role in decarbonizing how many of the above industries?

With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements:

1. Biofilters provide waste treatment by removing uneaten fish feed.
2. Biofilters convert ammonia present in fish waste to nitrate.
3. Biofilters increase phosphorus as nutrient for fish in water.

How many of the statements given above are correct?

Consider the following statements: 

Statement I: Marsupials are not naturally found in India. 

Statement II: Marsupials can thrive only in montane grasslands with no predators.

Which one of the following is correct in respect of the above statements?

Invasive species Specialist Group' (that develops Global Invasive Species Database) belongs to which one of the following organizations?

Consider the following statements : 

Statement-I : According to the United Nation's 'World Water Development Report, 2022', India extracts more than a quarter of the world's groundwater withdrawal each year. 

Statement-II :India needs to extract more than a quarter of the world's groundwater each year to satisfy the drinking water and sanitation needs of almost 18% of world's population living in its territory.

Which one of the following is correct in respect of the above statements?

Consider the following activities :

1. Spreading finely ground basalt rock on farmlands extensively
2. Increasing the alkalinity of oceans by adding lime
3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters

How many of the above activities are often considered and discussed for carbon capture and sequestration?

Consider the following statements: Statement-I: Carbon markets are likely to be one of the most widespread tools in the fight against climate change. Statement-II: Carbon markets transfer resources from the private sector to the State.

Which one of the following is correct in respect of the above statements?

Consider the following statements regarding mercury pollution:

1. Gold mining activity is a source of mercury pollution in the world.
2. Coal-based thermal power plants cause mercury pollution.
3. There is no known safe level of exposure to mercury.

How many of the above statements are correct?

Which of the following organisms perform waggle dance for others of their kin to indicate the direction and the distance to a source of their food?

Consider the following statements : 

1. In India, the Biodiversity Management committees are key to the realization of the objectives of Nagoya Protocol.
2. The Biodiversity Management committees have important functions in determining access and benefit sharing, including the power to levy collection fees on the access of biological resources within its jurisdiction.

Which of the statements given above is/are correct?

Consider the following statements:

Once the Central Government notifies an area as a 'Community Reserve'

1. The Chief Wildlife Warden of the State becomes the governing authority of such forest
2. hunting is not allowed in such area
3. people of such area are allowed to collect non-timber forest produce
4. people of such area are allowed traditional agricultural practices

How many of the above statements are correct?

With reference to green hydrogen, Consider the following statements :

1. It can be used directly as a fuel for internal combustion.
2. It can be blended with natural gas and used as fuel for heat or power generation.
3. It can be used in the hydrogen fuel cell to run vehicles.

How many of the above statements are correct?