The biosphere is made up of the parts of Earth where life exists. … The Earth’s water—on the surface, in the ground, and in the air—makes up the hydrosphere. Since life exists on the ground, in the air, and in the water, the biosphere overlaps all these spheres. What isRead More →

Most people who stop brushing their teeth will develop cavities (tooth decay) and/or periodontal disease (gum disease). Both can be painful and both can cause teeth to fall out. Is it OK to skip one night brushing teeth? The reality is that not brushing your teeth before bed is badRead More →

Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction, and 5) cementation of the sediment to form a rock. The latter two steps are called lithification. What are two ways sedimentary rocks form?Read More →

The odometer is the device which is used to measure the distance travelled. The distance travelled by vehicle between any two points can be known by the odometer. The speedometer is the device which can tell us the instantaneous speed of any vehicle. What is speedometer and odometer Class 7?Read More →

Schizophrenia is a chronic brain disorder that affects less than one percent of the U.S. population. When schizophrenia is active, symptoms can include delusions, hallucinations, disorganized speech, trouble with thinking and lack of motivation. What is delusion with example? Delusions are often reinforced by the misinterpretation of events. Many delusionsRead More →

Mathematics: a number, or the result of a calculation. Example: 3 × 4 gives the value of 12. Money: how much something is worth. What is the mean of value? 1 : the monetary worth of something : market price. 2 : a fair return or equivalent in goods, services,Read More →

The name suggests its composition: 13–17% NaO (the “soda”), 5–10% CaO (the “lime”), and 70–75% SiO2 (the “glass”). Is soda lime a drying agent? Soda lime’s ability to absorb moisture makes it a powerful drying agent, or desiccant, in commercial and industrial usage. Is CaO soda lime? This option isRead More →

Drought is a continuous period of dry weather when an area gets less than its normal amount of rain. Droughts can last months or even years. Because crops and other plants need water to grow and land animals need water to live, droughts can be dangerous. Where is a drought?Read More →