Q: What is the only substance on earth that is present in all three states of matter? Read this paragraph and choose the correct option from the provided answers: Water is the only substance on Earth that is present in all three states of matter. This means that water is present as a solid, liquid, and gas. Earth is the only planet where water is present in all three states. All three phases may be present in a single location or in a region. The three phases are solid (ice or snow), liquid (water), and gas ( water vapor ). See ice, water, and clouds pictured below ( Figure below ). Choices: - mercury - air - carbon - water A:
water

(Question)
Q: What type of plant keeps it green leaves year-round? Read this paragraph and choose the correct option from the provided answers: An evergreen plant keeps its green leaves year-round. It may have needle-like leaves to reduce water loss. Choices: - deciduous - conifer - cactus - evergreen plant A:
(Answer)
evergreen plant

Ques: Q: "crossing over" occurs during what phase of mitosis? Read this paragraph and choose the correct option from the provided answers: Choices: - Prophase ii - prophase VI - prophase iii - prophase i A:
Ans: prophase i

(Q).
Q: Bacteria may divide several what an hour? Read this paragraph and choose the correct option from the provided answers: Asexual reproduction can be very rapid. This is an advantage for many organisms. It allows these organisms to crowd out other organisms that reproduce more slowly. Bacteria, for example, may divide several times per hour. Under ideal conditions, 100 bacteria can divide to produce millions of bacterial cells in just a few hours. However, most bacteria do not live under ideal conditions. If they did, the entire surface of the planet would soon be covered with them. Instead, their reproduction is kept in check by limited resources, predators, and their own wastes. This is true of most other organisms as well. Choices: - cells - hosts - days - times A:
(A).
times

Ques:Q: What simple machine consists of a bar that rotates around a fixed point called the fulcrum? Read this paragraph and choose the correct option from the provided answers: A lever is a simple machine that consists of a bar that rotates around a fixed point called the fulcrum. There are three classes of levers. Depending on its class, a lever may have an ideal mechanical advantage that is less than, equal to, or greater than 1. First-class levers also change the direction of the input force. Choices: - battering ram - rotor - catapult - lever A:

Ans:lever

Q: The mostly subterranean lifestyle of stone plants reduces water loss from evaporation and inhibits what? Read this paragraph and choose the correct option from the provided answers: Choices: - reactions - chlorophyll - tissues - photosynthesis A:
photosynthesis