Grammar

Apostrophes are used to show possession (e.g. "John's book"), contraction (e.g. "can't" for cannot), and to indicate missing letters in a contraction (e.g. "they'll" for they will). It's important to avoid using apostrophes for plural forms, such as "apple's" for apples.

A hind is the feminine of a hart!

A light-year is a measure of distance, not of time.

Looking directly at the sun can damage the retina and/or cause blindness.

You can find the download for Zoo Tycoon 2: Formidable Seas on various gaming websites and forums that cater to Zoo Tycoon 2 players. Be cautious when downloading from unofficial sources and make sure to scan files for malware before running them.

Light can partialy escape from an eclipse, unlike a black hole.
Hybrid eclipses are rare.

The list goes on... and on... AND ON, but here are some major (and seemingly obvious) points.

Poaceae is mostly (if not exclusively) wind pollinated, Asteraceae is not. Because they are abiotically pollinated, members of Poaceae lack "showy" flowers. Instead, they are highly reduced versions of the reproductive structures. They have no "typical" calyx (they have lodicules instead), they lack a corolla and they are very small. Dissimilarly, Asteraceae are biotically pollinated by a variety of animals and therefore require showy, attractive flowers. The inflorescence of Asteraceae is bourne on an involucrate head (many flowers on one receptacle). Poaceae are usually found in Spike, panicle or raceme type inflorescences. Poaceae = superior gynoecium, Asteraceae = inferior gynoecium. Poaceae = caryopsis, Asteraceae = achene. Hope this helps you out!

The intense heat caused the metal to warp and bend out of shape.

It is important to know how to use words correctly. "After experiencing the weightlessness of space, an astronaut has to retrain their muscles. ".

The dawn of 21st December 2012 is the end of the world.


Prasanna

Both of Lin's brothers-in-law work at the Observatory.

Tetraploidy is a condition in which an organism has four sets of chromosomes instead of the usual two sets. This can occur through errors in cell division processes. Tetraploidy can lead to genetic abnormalities and usually results in the organism having difficulty surviving.

The correct grammar for the sentence "The sun shone behind the stars" is to use the past tense of the verb "shine" as "shone" instead of "shined."

Sector is a word that describes something is apart from other things but in the same area. A good sentence would be, they had seats in the sector section at the baseball game.

Asteroid is a noun referring to small heavenly bodies revolving around the sun. Here are some sample sentences.

"Some of the largest asteroids in the asteroid belt between Mars and Jupiter have been given names such as Ceres, while others have only a designation based on when they were discovered."
"Asteroids are a possible source of materials that are rare on Earth."

1) Zodiac is a diagram of animals for sun-sign and moon-sign.

2) There is an scientific reason behind all this zodiac sign.

3) My zodiac sign is Leo.

Subject: The Sun

Predicate: is much bigger than all the other planets.

because it knows about its power....

is animal

Zenith means direcly above you in the sky.

It can be used figuratively to mean something at its highest level.

Our calendar is incompletely inaccurate.

What happens to your bones when you are weightless, is that your bones will get weaker and weaker. That is why everyday, astronauts, have to spend two hours on a treadmill everyday of there space expedition.

A logic connective is a symbol or word used to connect different parts of a logical statement. Common logic connectives include "and," "or," "not," and "if-then." They help to express relationships between propositions in logic.

"An asterisk always accompanies the word it is highlighting. Punctuation would come after the asterisk."

I believe this answer is correct for British English but it is wrong in regards to American English. According to the MLA and APA, superscripts such as asterisks come after the punctuation mark with the exception being dashes. When a long dash is used the superscript comes before the dash. For example:

These pies contain cardamom,* clove, and nutmeg.

*seeds only

And:

All of my jobs*--landscaping, cooking, and tending bar--are based heavily on tips.

*Jobs also are unreported

It should also be noted that asterisks are not considered correct form for signifying footnotes in MLA and numbers should be used.

We saw Johnny writhe in embarrassment.

They can writhe and die for all I care.

it is written un kangourou (masc.)