Which process will decrease the level of CO2 in the atmosphere?

growing trees

cutting trees

burning trees

increasing the human population

What type of rock is formed when lava cools and hardens?

If you wanted to study dolphins and porpoises, which zone would you want to investigate? a. Bathyal b. Interidal c. Abyssal d. Sublittoral

Ziggurats were made out of all of the following materials except a. mud. c. water. b. granite. d. grass

What occurs in a dehydration synthesis reaction? A. The reaction breaks a chemical bond by adding water B. As the reaction occurs water is added C. As the reaction occurs OH - and H + are removed D.

The extra calories for pregnancy are needed mostly during which trimester (s) ?

The Punnett square below represents a cross that produced two plants with orange flowers. If the orange color of the flowers is a result of incomplete dominance, what color were the flowers on the parent plants?

Some vertebrates can go through nymph and pupa forms. True or False

Over millions of years, hominid species learned to use and create tools that became more complex over time. They eventually shaped stone into knives used for cutting, and they harnessed fire for light, heat, and cooking food.

To cause a human pandemic, the H5N1 avian flu virus would have to a. spread to primates such as chimpanzees. b. develop into a virus with a different host range. c. become capable of human-to-human transmission. d. become much more pathogenic.

Which of the following is an example of a mineral