Science Released Test (33-48)

Science Released Test (33-48)

Nitrogen is the most abundant gas in the atmosphere. The nitrogen in the air/soil has to be "FIXED" by bacteria to be put in a usable form for use by plants

• Nitrogen is vital for protein production in plants

Biotechnology is using living things to solve life problems.

• Helps lower use of pesticides

• allows plants to grow in different climates

• produce large amounts of foods quicker

Multiple Choice

Which best explains the importance of nitrogen in the cycling of energy and matter?

• nitrogen increases protein production in plants

• nitrogen decreases protein production in plants

• nitrogen decreases the effectiveness of photosynthesis

• nitrogen increases the effectiveness of photosynthesis

Multiple Choice

Which is a way the agricultural biotechnology industry could have a positive impact on the environment?

• by producing crops that are virus resistant

• by making robots to replace large farm machines

• by reducing the need for countries to import food

• by increasing the use of wind farms that produce electricity

Multiple Choice

If wolves prey on deer for food, what will most likely happen to the deer population if wolves are removed from an area where deer live?

• The population of deer will increase

• the population of deer will decrease

• The population of deer will remain the same

• the population of deer will become extinct

Multiple Choice

Where do plants get most of the energy they need to live and grow?

• water

• soil

• air

• sunlight

Multiple Choice

Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?

• they swim the same way

• they eat the same food

• they live in the same area of the ocean

• they have similar anatomies

Multiple Choice

Which would best allow a species to survive environmental changes?

• similar physical features

• low mutation rate

• small population

• genetic diversity

Multiple Choice

How would smoking tobacco most likely have a negative impact on the ability of an individual to succeed at physical activities

• it interferes with balance and coordination

• it decreases the ability to make decisions rapidly

• it decreases stamina and cardiovascular efficiency

• it decreases the speed and power of muscle contractions

Multiple Choice

Which shows one example of a physical and one example of a chemical change?

• boiling water and melting wax

• rustin iron and baking a cake

• dissolving powder and grilling a steak

• freezing water and burning coal

Multiple Choice

How does a balanced chemical equation satisfy the law of conservation of mass?

• during a chemical reaction, the total amount of matter stays the same

• during a chemical reaction, matter is destroyed

• during a chemical reaction, one or more new substances are formed

• during a chemical reaction, the total number of atoms increases

Multiple Choice

Which is a problem with using turbines to produce energy?

• they are efficient only in certain areas

• they occupy a small area of land

• they produce a large amount of energy

• they create a large amount of pollution

Multiple Choice

Which best describes the characteristics of a river basin?

• land drained by a river and its tributaries

• land formed when rivers create estuaries ane marshes

• the land at the mouth of a river where water flows into the ocean

• the land formed as a result of river flooding

Multiple Choice

Which factors can have the greatest effect on the health of a river system?

• type of soil and salinity

• nitrate levels and turbidity

• human consumption and pH

• natural disasters and tidal changes

Multiple Choice

In the United States, which is responsible for ensuring the safety of the country's drinking water?

• Environmental Protection Agency (EPA)

• Food and Drug Administration (FDA)

• Nation Oceanic and Atmospheric Administration (NOAA)

• Center for Disease Control (CDC)