"acidity"

#12789175

23 September 2025

A person applies lime to a pond by boat to control acidity, clean the water, and enhance natural food production for fish farming on the outskirts of Dhaka, Bangladesh, on September 23, 2025.

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#12789193

23 September 2025

A person applies lime to a pond by boat to control acidity, clean the water, and enhance natural food production for fish farming on the outskirts of Dhaka, Bangladesh, on September 23, 2025.

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#12789194

23 September 2025

A person applies lime to a pond by boat to control acidity, clean the water, and enhance natural food production for fish farming on the outskirts of Dhaka, Bangladesh, on September 23, 2025.

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#12611787

3 August 2025

A macro shot of a freshly cut lime reveals the juicy interior and fine pulp structure. The image, captured in natural light during summer in Spain, highlights the vibrant texture and freshness of the citrus fruit.

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#12611788

3 August 2025

A macro shot of a freshly cut lime reveals the juicy interior and fine pulp structure. The image, captured in natural light during summer in Spain, highlights the vibrant texture and freshness of the citrus fruit.

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#12611789

3 August 2025

A macro shot of a freshly cut lime reveals the juicy interior and fine pulp structure. The image, captured in natural light during summer in Spain, highlights the vibrant texture and freshness of the citrus fruit.

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#12611790

3 August 2025

A macro shot of a freshly cut lime reveals the juicy interior and fine pulp structure. The image, captured in natural light during summer in Spain, highlights the vibrant texture and freshness of the citrus fruit.

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#11820971

29 November 2024

Juana Villada Martinez, a food chemist who graduates from the National Autonomous University of Mexico and founder of Grupo Vima inclusionnte AC, along with Salmy, a rescued dog approximately 7 years old, collects cooking oil due to their concern about the excessive use and waste of this oil in the pipes to turn it into soap and crafts to avoid a negative impact on the environment. On this mission, Salmy accompanies several people around the university campus on a green cart designed and built with recycled elements, donated by the industrial designer Hermogenes Gustavo Rojas Coca, who is also a professor at the Faculty of Engineering. Merchants and owners of food stores already know that on Fridays, Salmy, together with the team of scientists, comes to them to receive the collected oil. Since February 2024, Juana Villada and Salmy are assigned a space in the Faculty of Chemistry to transform used cooking oil, a task that is not easy because it must be characterized for its treatment and transformation, as canola, corn, or soybean oils behave differently. This task is carried out with the support of Juan Carlos Ramirez Orejel, an academic technician of the laboratories of the Department of Animal Nutrition and Biochemistry of the Faculty of Veterinary Medicine and Zootechnics of the UNAM. In this place, physicochemical studies are conducted to determine its characteristics such as peroxide indices, acidity, saponification, and density.

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#11462057

8 August 2024

A child is experiencing the ''acid-base discoloration experiment of Purple Cabbage'' at the first Beijing International Science Festival in Beijing, China, on August 8, 2024.

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#11294779

1 June 2024

An aerial view is showing some dry land area in Lisbon, Portugal, on June 1, 2024. Extreme heat warnings are being issued on the Iberian peninsula where the temperatures are rising due to climate change.

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#11015859

22 February 2024

The Zumpango Lagoon in Zumpango de Ocampo, Mexico, is experiencing the effects of drought, with an area of 20 hectares impacted due to the lack of rain, on February 21, 2024.

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#11015860

22 February 2024

The Zumpango Lagoon in Zumpango de Ocampo, Mexico, is experiencing the effects of drought, with an area of 20 hectares impacted due to the lack of rain, on February 21, 2024.

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#11015861

22 February 2024

The Zumpango Lagoon in Zumpango de Ocampo, Mexico, is experiencing the effects of drought, with an area of 20 hectares impacted due to the lack of rain, on February 21, 2024.

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#11015864

22 February 2024

The Zumpango Lagoon in Zumpango de Ocampo, Mexico, is experiencing the effects of drought, with an area of 20 hectares impacted due to the lack of rain, on February 21, 2024.

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#11015866

22 February 2024

The Zumpango Lagoon in Zumpango de Ocampo, Mexico, is experiencing the effects of drought, with an area of 20 hectares impacted due to the lack of rain, on February 21, 2024.

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#11015870

22 February 2024

The Zumpango Lagoon in Zumpango de Ocampo, Mexico, is experiencing the effects of drought, with an area of 20 hectares impacted due to the lack of rain, on February 21, 2024.

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