Why do very few trees exist in a grassland ecosystem?

A.

not enough heat

B.

not enough topsoil

C.

not enough sunlight

D.

not enough precipitation

Name an element in the third period (row) of the periodic table with one valence electron.

One of the method used for the manufacturing of steel is the a. Bessemer process b. centrifugation c. destructive distillation d. evaporation e. fractional distillation

What is happening in the East African Rift Zone? Select one: a. Tectonic plates are moving apart. b. Tectonic plates are moving together. c. Tectonic plates are moving sideways past each other. d. Tectonic plates are not moving in this region.

How does the electrical current in electrolysis act as a catalyst driving a reaction forwards?

Complete the sentence using the correct term. is a farm management methodology that uses information and technology to manage variability in a field with the goal of generating optimum profits.

Complete the matching exercise below by choosing the correct description of each bond type in aqueous solution. 1. covalent bond 2. hydrogen bond 3. electrons shared by atoms a. electrons shared by atoms b.

One mole of calcium ions has the same number of representative particles as which of the following? one mole of calcium nuclei one mole of calcium atoms 6.02 x 1023 calcium ions All of these are correct.

How is chemical symbol and chemical formula difference?

Why is a cis-1,3-disubstituted cyclohexane more stable thanits trans isomer?

How many grams of aluminum will react with 3.4 moles of chlorine