Question

1.   How do gases increase the overall greenhouse effect?

A. Increasing the overall width of the ozone

B. Trapping energy from the sun in the earth's atmosphere

C. Increasing the size of the stratosphere and decreasing the size of the mesosphere

D. Generating heat through mixing of the gases

2. If a scientist is studying the attraction of water molecules to each other, what property is he or she studying?

A. Surface tension

B. Cohesion

C. Adhesion

D. Bonding

3. Which of the following is an appropriate problem statement for a science experiment?

A. Microplastic causes problems for coral reefs and we want to know exactly what problems are caused.

B. The effect of microplastic on the gut of small fish is unknown to humans.

C. What is microplastic?

D. What is the effect of microplastic on the digestion processes of small fish?

4.   Why are there many niches of species in one mountain?

A. The elevation changes of the mountain cause different climates.

B. There's no water on the top of a mountain to support life.

C. The biotic factors on the mountain force interspecific competition.

D. The leeward and wayward sides of the mountain have different elevations.

5. What country is most likely to be in stage 4 of population growth with a low birth rate and a low death rate?

  A. India

B. China

C. Venezuela

D. United States

6. An organism takes care of its young and produces few offspring. What type of organism is this?

A. K-strategist

B. L-strategist

C. R-strategist

D. S-strategist

Answer 1

Answer 2

1. B. Trapping energy from the sun in the earth's atmosphere. Gases, such as carbon dioxide (CO2), methane (CH4), and water vapor (H2O), in the Earth's atmosphere trap heat energy from the sun through a phenomenon known as the greenhouse effect. This trapped heat warms the Earth's surface and contributes to the overall greenhouse effect.

2. B. Cohesion. Cohesion is the property that refers to the attraction of water molecules to each other. It is the force that holds water molecules together and gives water its high surface tension.

3. D. What is the effect of microplastic on the digestion processes of small fish? This is an appropriate problem statement for a science experiment because it clearly defines the research question and the specific variable being studied (the effect of microplastic on the digestion processes of small fish).

4. A. The elevation changes of the mountain cause different climates. The different elevations on a mountain can lead to variations in climate, such as temperature and precipitation, which create various niches for different species to occupy.

5. D. United States. In stage 4 of population growth, both the birth rate and death rate are low, resulting in a stable population. The United States is an example of a country that is most likely in stage 4 of population growth.

6. A. K-strategist. An organism that takes care of its young and produces few offspring is characteristic of a K-strategist. K-strategists invest more time and energy in the survival and care of their offspring, resulting in a slower rate of reproduction and more stable population sizes.

7.