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Environmental Science

Environmental Science
Molten rock deep inside the earth is called

magma
lava
valcano
core

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Environmental Science
A high Biological Oxygen Demand (BOD) indicates that:

absence of microbial action
High level of microbial pollution
water is pure
Low level of microbial pollution

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Environmental Science
Largest reptile in the world

Anaconda
Python
Dragon
Crocodile

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Environmental Science
A __________ is formed due to the collection of water in a natural basis or depression in a mountainous area or in plains.

Pond
Lake
Spring
Stream

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Environmental Science
Moisture in the air is known as

Water
Humidity
Fog
Snow

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Environmental Science
Radiation can cause

leukemia
cardiac disease
Haemophilia
bone marrow diseases

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MORE MCQ ON Environmental Science

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