shahzaib hassan BIOLOGY   -   Environmental Science

An association has been found between exposure to ____________________ by the inhalation route and lung cancer.

Chromium, particularly in its hexavalent form, is a known carcinogen when inhaled.
shahzaib hassan BIOLOGY   -   Environmental Science

The pH of the atmosphere is:

The atmosphere generally has a neutral pH, though localized changes can occur.
shahzaib hassan BIOLOGY   -   Environmental Science

Of the following agents, the one that would not favor conversion of sulfur dioxide to sulfate species in the atmosphere is:

Ammonia does not favor the conversion of sulfur dioxide to sulfate species.
shahzaib hassan BIOLOGY   -   Environmental Science

Biotic component of the environment does not include:

The soil system is an abiotic component of the environment, not biotic.
shahzaib hassan BIOLOGY   -   Environmental Science

The result of acid deposition is:

Acid deposition damages forests and aquatic ecosystems by lowering pH levels.
shahzaib hassan BIOLOGY   -   Environmental Science

The greenhouse effect in the atmosphere is produced due to:

The greenhouse effect is caused by gases in the atmosphere trapping heat.
shahzaib hassan BIOLOGY   -   Environmental Science

Acid rain is a result of:

Acid rain occurs when sulfur dioxide (SO2) and nitrogen oxides (NO2) are released into the atmosphere.
shahzaib hassan BIOLOGY   -   Environmental Science

The set of ecosystems is called:

A biome is a large area characterized by its vegetation, soil, climate, and wildlife.
shahzaib hassan BIOLOGY   -   Environmental Science

What percentage of oxygen and carbon dioxide exists in the ecosystem?

The Earth's atmosphere contains approximately 20.95% oxygen and 0.04% carbon dioxide.
shahzaib hassan BIOLOGY   -   Environmental Science

A wide variety of living organisms is called:

Biodiversity refers to the variety and variability of life on Earth.

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