(Q).
Q: Overproduction of offspring, combined with limited resources, results in what? Read this paragraph and choose the correct option from the provided answers: Choices: - continuation - contention - concentration - competition A:
(A).
competition

(Q).
Q: The earliest types of what lacked flowers, leaves, roots and stems? Read this paragraph and choose the correct option from the provided answers: Most modern plants, like the skunk cabbage, produce flowers. However, flowers evolved relatively late in the history of plants. The earliest plants not only lacked flowers. They also lacked leaves, roots, and stems. They probably resembled the alga in Figure below . Choices: - animals - clouds - houses - plants A:
(A).
plants

(Q).
Q: While climate change in earth history was due to natural processes, what is primarily to blame for recent global warming? Read this paragraph and choose the correct option from the provided answers: Climate change in Earth history was due to natural processes. Recent global warming is due mainly to human actions. The burning of fossil fuels releases greenhouse gases into the air. This creates greater greenhouse effect and global warming. Choices: - wars - volcanos - factories - human actions A:
(A).
human actions