Hot stars, such as O and A stars, are unlikely to harbor planets suitable for sustaining life because   a. their stable energy-producing lifespan is too short.   b. they are too hot.   c. they are too cold.   d. they produce an unusually high amount of deadly radiation.

Q: Should nations with large ecological footprints reduce their footprints to decrease their harmful en...

A: The Earth is made up of four spheres known as lithosphere, atmosphere, hydrosphere, and biosphere. A...

Q: Explain why, at times, Pluto is not the most distant planet in the solar system.

A: The solar system is a gravitationally bound system around the sun. It has 8 planets, their moons, dw...

Q: How is the ecosystem of your backyard different from the ecosystem of another person's backyard ecos...

A: A population of living organisms communicating with their nonliving environment is referred to as an...

Q: The Search for Extra-Terrestrial Intelligence (SETI) using radio telescopes began in the   a. 19...

A: By reviewing the question, We need to find when did The Search for Extra-Terrestrial Intelligence (S...

Q: Give one reason to show that the interior of the earth is hot.

A: The inside of the Earth is too hot, the temperature of the core is greater than 5000oC. There are ma...

Q: The Huygens probe to the surface of Titan revealed   a. pebble-sized chunks of ice.   b. liq...

A: Huygens Probe was an advanced robotic probe that landed on Saturn's moon Titan in January 2005. It t...

Q: Of the following searches for extraterrestrial radio signals, which one has detected a signal from a...

A: By reviewing the question, We need to find which of the following searches for extraterrestrial radi...

Q: Can climate change be prevented? Support your answer.

A: Climate change is a phenomenon that is experienced worldwide. It is a climate transition that is mar...

Q: Where does most of the power generated in the U.S come from?

A: Energy is very essential for human civilization to develop. Energy is required for industries, house...

Q: The orbit of Pluto is   a. nearly perfectly circular.   b. highly elliptical and lying almos...

A: Pluto is a dwarf planet in the Kuiper belt, a ring of bodies past the circle of Neptune. It was the ...

Q: What is the evidence that suggests that Mars had large amounts of liquid water flowing on its surfac...

A: Water is a covalent compound made up of two atoms of hydrogen and one atom of oxygen by means of mut...

Q: Jupiter’s interior is mostly   a. rock.   b. molten iron.   c. water.   d. hydrogen ...

A: Jupiter is 5th planet in the solar system and is the largest. It is categorised as Jovian planet as ...

Q: What are the top 3 hazards posed by alien invasive species?? Support your answer with examples of in...

A: Alien invasive species are organisms that are non-native to an ecosystem and they may cause harm to ...

Q: Question 22 The Western Interior Seaway predated the Rocky Mountains True False

A: Since ancient times, our planet was formed with its different terrains, due to tectonic movements, a...

Q: The DNA molecule can be altered   a. by chance mismatching of base pairs.   b. by damage fro...

A: By analysing the question, We need to select the option by which The DNA molecule can be altered. Be...

Q: give some examples of ecocide happened or happening around the world？

A: Ecocide is the destruction and damage of the natural environmental factors by the actions of us huma...

Q: Describe the characteristics of the most common type of asteroid.

A: The solar system is a gravitationally bound system around the sun. It has 8 planets, their moons, as...

Q: Why is the carbon atom considered to be the most likely basis for life?

A: By reviewing the question, We need to tell why is the carbon atom considered to be the most likely b...

Q: Earth Science Question

A: The occurrence of day and night is a cyclic process that continues in a never-ending loop. The earth...

Q: Define ecosystem in your words.

A: An ecosystem is a dynamic community that includes a set of physical, chemical and biological factors...

Q: The element carbon is the physical basis for life on Earth. This atom   a. is the most abundant ...

A: By reviewing the question, We need to find The element carbon is the physical basis for life on Eart...

Q: How does one go about this questions?

A: The amount of time it takes for the earth to spin once on its axis in relation to the sun is measure...

Q: Which contact "is an erosional break between two sets of beds in which the unconformity shows relief...

A: Earth science is the study of the Earth and the various processes that are going on in the Earth sys...

Q: An offspring born with altered DNA because of errors in reproduction   a. is called a mutant. ...

A: By analysing the question We need to find An offspring born with altered DNA because of errors in re...

Q: • The earthquake on May 12, 2008, in Eastern Sichuan in China had an intesity of I=79,432,823 I. Fin...

A: Earthquake essentially refers to the sudden shaking of the Earth's surface. It is essentially a geo-...

Q: What is the difference between Agronomic crops and horticultural ones

A: Agronomy deals with the crop production in a more holistic manner as compared to ordinary agricultur...

Q: Identify what type of rock belongs to the rock in the photo (igneous, sedimentary or metamorphic roc...

A: The rock is a naturally-occurring solid mass of aggregate-mineral matter. The rocks are-usually grou...

Q: What was the name of the impact that killed off the dinosaurs? O Tunguska O Chicxulub Woodleigh Wetu...

A: Dinosaurs were a species of mammals that existed on earth some million years ago. This species of ma...

Q: As discussed by Cox in Chapter 9 (Environmental communication and the Public Sphere, Chapter 9 is Ad...

A: The Zuni salt lake is a sacred site and is a pilgrimage destination for many of the peoples in unite...

Q: What impact is climate change having on our local ecology?

A: Ecology is a term from the field of environmental science and tells us the meaning that it is made o...

Q: ______________________ are round bits of glass found in some stony meteorites.   a. Chondrites ...

A: The solar system is a gravitationally bound system around the sun. It has 8 planets, their moons, as...

Q: What are toxic and hazardous waste or (THW). What are its characteristics and its sources? in additi...

A: Firstly, let us discuss something about the terms used in the question toxic, waste, and hazardous, ...

Q: Free oxygen in Earth’s atmosphere was produced by   a. chemical reactions taking place in the oc...

A: The atmosphere of the earth was formed when the earth got formed. Earlier there was no oxygen presen...

Q: The iron meteorites probably formed from   a. large planetesimals that melted and differentiated...

A: The solar system is a gravitationally bound system around the sun. It has 8 planets, their moons, as...

Q: what the different between quartz and feldspare and how i can identfiy in the nature ?

A: Minerals are naturally occurring solid inorganically formed which have a definite chemical compositi...

Q: What type of biome do you live in or near? What effects have human activities had on the characteri...

A: There are several biomes present all over the world. The flora and fauna present in these regions ar...

Q: What system of planting (square, rectangular, diagonal, triangular, hexagonal, contour) has the opti...

A: By reviewing the question  we need to find the system of planting (square, rectangular, diagonal, tr...

Q: Jupiter’s belts and bands are the result of atmospheric features that have been   a. brought up ...

A: Ever since the beginning of the Universe, matter and energy were created. These matters and energy e...

Q: Find the type of a meteorite that impact our planet Earth where its mass is 1820 g and its volume eq...

A: A meteorite is any extraterrestrial piece of rock like a comet, asteroid or meteoroid that has falle...

Q: Why do places at the same latitude but different altitudes have different climate? A. Amount of h...

A: The places located on the globe show climatic characters based on their relative and specific locati...

Q: Q.4. A particular sequence of sedimentary rocks is found to contain the following assemblage of micr...

A: a. Layer E contains bryozoa, foraminifera and trilobites. The age range for bryozoan is Silurian to ...

Q: Follow the direction of the image and choose the correct answer

A: Geology is the branch of science that studies the Earth. Geology studies the past, present, and futu...

Q: Urbanization has many effects on an ecosystem including changes to water and heat fluxes. For each o...

A: 1. Evapotranspiration will be more in rural areas as compared to urban areas because there will be m...

Q: Why are scientists emphasizing the study of Mars in their search for life elsewhere in the solar sys...

A: By reviewing the question, We need to find why are scientists emphasizing the study of Mars in their...

Q: ________________________ shows that the building blocks of life form naturally under a wide range of...

A: By reviewing the question We need to fill the blank of the given statement Below you can find your a...

Q: Thisi seismic data processing course.  What is migrated smile noise?

A: Seismic relay is the procedure used to determine the location and time in which the earthquake occur...

Q: The heavy bombardment era had the greatest influence on which stage of Earth’s development?   a. ...

A: The solar system is the gravitationally bound system around the sun. There are 8 planets, many natur...

Q: The nucleus of the comet contains mostly the ices of water, carbon dioxide, and ammonia. The coma is...

A: The solar system is a gravitationally bound system around the sun. It has 8 planets, their moons, as...

Q: In 1974, one group of astronomers at the radio telescope in Arecibo transmitted an anticoded message...

A: By reviewing the question, We need to find meaning In 1974, one group of astronomers at the radio te...

Q: Match Them correctly

A: Relative dating is finding age of rock relative to other event or fossils or structure present near ...