Environmental Changes and Effects

Front

What is vitamin D and why is it important for bones?

Back

Vitamin D helps the body absorb calcium, which is essential for strong bones.

Front

How can people get vitamin D?

Back

People can get vitamin D from foods like milk, fish, and mushrooms, and their bodies can make it when exposed to sunlight.

Front

What happens to bones if a person avoids foods with vitamin D?

Back

The person's bones may become weak due to insufficient calcium absorption.

Front

What is an estuary?

Back

An estuary is a coastal area where fresh water from rivers meets and mixes with salt water from the ocean.

Front

Why do cranes build nests in estuaries?

Back

Cranes build nests in estuaries because they provide a habitat with food sources like crabs.

Front

What can happen to animals living in a pond if there is much less rain than usual?

Back

Animals may have less space to live and grow due to reduced water levels.

Front

What is thermal pollution?

Back

Thermal pollution occurs when industries release heated water back into natural water bodies, affecting local ecosystems.

Front

How can factories reduce thermal pollution?

Back

Factories can let the water cool down before returning it to lakes or rivers.

Front

What effect does a drought have on estuaries?

Back

A drought can reduce the amount of fresh water, affecting the balance of the ecosystem and food sources.

Front

What is the role of crabs in the diet of cranes?

Back

Cranes eat crabs, which are a primary food source for them in estuaries.